快 kuài rapid / quick / speed / rate / soon / almost / to make haste / clever / sharp (of knives or wits) / forthright / plainspoken / gratified / pleased / pleasant syn 速度 sù dù speed / rate / velocity / (music) tempo / CL:個|个[ge4] syn 快速 kuài sù fast / high-speed / rapid syn 加速 jiā sù to speed up / to expedite syn 高速 gāo sù high speed / expressway (abbr. for 高速公路[gao1su4 gong1lu4]) syn 低调 低調 dī diào low pitch / quiet (voice) / subdued / low-key / low-profile 加快 jiā kuài to accelerate / to speed up syn 减速 減速 jiǎn sù to reduce speed / to slow down syn 时速 時速 shí sù speed per hour 低级 低級 dī jí low level / rudimentary / vulgar / low / inferior syn 光速 guāng sù the speed of light 奔驰 奔馳 bēn chí to run quickly / to speed / to gallop syn 飞车 飛車 fēi chē fast-moving vehicle / to drive or ride a vehicle at high speed 超速 chāo sù to exceed the speed limit / to speed / high-speed 全速 quán sù top speed / at full speed syn 飞快 飛快 fēi kuài very fast / at lightning speed / (coll.) razor-sharp syn 急速 jí sù hurried / at a great speed / rapid (development) syn 低潮 dī cháo low tide / low ebb 风速 風速 fēng sù wind speed 低沉 dī chén (of weather) overcast / gloomy / (of a voice) low and deep / low-spirited / downcast syn 加紧 加緊 jiā jǐn to intensify / to speed up / to step up syn 神速 shén sù lightning speed / amazingly rapid / incredible pace of development syn 飞驰 飛馳 fēi chí to speed / to rush syn 限速 xiàn sù speed limit 车速 車速 chē sù vehicle speed 音速 yīn sù speed of sound syn 下级 下級 xià jí low ranking / low level / underclass / subordinate syn 速率 sù lǜ speed / rate 火速 huǒ sù at top speed / at a tremendous lick syn 变速器 變速器 biàn sù qì gearbox / speed changer / gear 开足马力 開足馬力 kāi zú mǎ lì to accelerate at full power (idiom) / at full speed / fig. to work as hard as possible syn 低压 低壓 dī yā low pressure / low voltage 奔流 bēn liú to flow at great speed / to pour / racing current syn 低档 低檔 dī dàng low-grade / of low worth or rank / poor quality / inferior syn 航速 háng sù speed (of ship or plane) 提速 tí sù to increase the specified cruising speed / to pick up speed / to speed up syn 疾驰 疾馳 jí chí to speed along syn 变速 變速 biàn sù to change speed / to shift gear / variable-speed 开快车 開快車 kāi kuài chē to drive at high speed / (fig.) rush through one's work syn 流速 liú sù flow speed / rate of flow 疾驶 疾駛 jí shǐ (of a vehicle) to travel at high speed syn 新干线 新幹線 xīn gàn xiàn Shinkansen (Japanese high-speed train) 快慢 kuài màn speed syn 调速 調速 tiáo sù to adjust the speed 疾速 jí sù very fast / at high speed syn 增速 zēng sù to speed up / to accelerate / (economics) growth rate syn 实测 實測 shí cè to take measurements / measured (speed etc) / observed (as opposed to "estimated") / observational (astronomy) 速配 sù pèi fast matchmaking / speed dating / (coll.) (Tw) (of a couple) to be a good match 慢速 màn sù slow / low-speed 兼程 jiān chéng to travel at double speed / to make all haste syn 高铁 高鐵 gāo tiě high speed rail 超高速 chāo gāo sù ultra high speed 快马加鞭 快馬加鞭 kuài mǎ jiā biān to spur the horse to full speed (idiom) / to go as fast as possible syn 速读 速讀 sù dú speed reading 急驰 急馳 jí chí to speed along 低分 dī fēn low marks / low score 电子警察 電子警察 diàn zǐ jǐng chá traffic camera / speed camera / closed-circuit TV police surveillance 低碳 dī tàn (attributive) low-carbon / low-carb (diet) 驶 駛 shǐ (of a vehicle, horse etc) to go fast / to speed / (of a vehicle) to run / to go / (of a boat) to sail syn 驰 馳 chí to run fast / to speed / to gallop / to disseminate / to spread syn 洼 窪 wā depression / low-lying area / low-lying / sunken syn 高不成低不就 gāo bù chéng dī bù jiù can't reach the high or accept the low (idiom) / not good enough for a high post, but too proud to take a low one 低缓 低緩 dī huǎn low and unhurried (voice etc) / low and gently sloping (terrain) syn 隐藏 隱藏 yǐn cáng to hide / to conceal / to mask / to shelter / to harbor (i.e. keep sth hidden) / to hide oneself / to lie low / to nestle / hidden / implicit / private / covert / recessed (lighting) syn 小声 小聲 xiǎo shēng in a low voice / (speak) in whispers 廉价 廉價 lián jià cheaply-priced / low-cost syn 埋伏 mái fú to ambush / to lie in wait for / to lie low / ambush syn 扫地 掃地 sǎo dì to sweep the floor / (fig.) (of one's reputation etc) to reach rock bottom / to be at an all-time low syn 小人 xiǎo rén person of low social status (old) / I, me (used to refer humbly to oneself) / nasty person / vile character syn 下流 xià liú lower course of a river / low-class / mean and lowly / vulgar / obscene syn 低下 dī xià low status / lowly / to lower (one's head) syn 音调 音調 yīn diào pitch of voice (high or low) / pitch (of a musical note) / tone syn 低温 低溫 dī wēn low temperature 低声 低聲 dī shēng in a low voice / softly syn 低谷 dī gǔ valley / trough (as opposed to peaks) / fig. low point / lowest ebb / nadir of one's fortunes syn 深沉 shēn chén deep / profound / (of a person) reserved / undemonstrative / (of a voice, sound etc) deep / low-pitched syn 谷底 gǔ dǐ valley floor / (fig.) lowest ebb / all-time low syn 自卑 zì bēi to have low self-esteem / to abase oneself syn 低价 低價 dī jià low price syn 矮小 ǎi xiǎo short and small / low and small / undersized syn 无精打采 無精打采 wú jīng dǎ cǎi dispirited and downcast (idiom) / listless / in low spirits / washed out 销声匿迹 銷聲匿跡 xiāo shēng nì jì to vanish without trace (idiom) / to lie low syn 低劣 dī liè inferior quality / substandard / low-grade syn 小妹 xiǎo mèi little sister / girl / (Tw) young female employee working in a low-level role dealing with the public (assistant, waitress, attendant etc) 淡水 dàn shuǐ potable water (water with low salt content) / fresh water 马背 馬背 mǎ bèi horse's back / (traditional Chinese architecture) roof with a low-slung curved ridgelines and geometric shapes on the upper gable walls at the ends of the roof ridges 避风 避風 bì fēng to take shelter from the wind / to lie low / to stay out of trouble 卑贱 卑賤 bēi jiàn lowly / mean and low syn 苦闷 苦悶 kǔ mèn depressed / dejected / feeling low syn 细语 細語 xì yǔ to chat with a low voice syn 低收入 dī shōu rù low income syn 低迷 dī mí blurred (landscape etc) / low (spirits) / in a slump (economy) syn 低廉 dī lián cheap / inexpensive / low syn 低空 dī kōng low altitude 不快 bù kuài unhappy / in low spirits / (of a knife) not sharp syn 贱卖 賤賣 jiàn mài to sell cheaply / sacrifice / low price / discount sale 缺血 quē xuè (of an organ) to have insufficient blood supply / (of a blood bank) to run low on blood supplies 低频 低頻 dī pín low frequency 