Chen Hao has thrown his packet away. Xiaoyu wants to know how he means to keep it up, and offers him a bet.
Xiaoyu
陈浩，你的烟呢？今天一支都没抽。
Chén Hào, nǐ de yān ne ? Jīntiān yī zhī dōu méi chōu.
Chen Hao, where are your cigarettes? You have not smoked a single one today.
Chen Hao
扔了。我打算戒烟。
Rēng le. Wǒ dǎsuàn jiè yān.
I threw them away. I mean to give up.
Xiaoyu
真的假的？你抽了八年了。
Zhēn de jiǎ de ? Nǐ chōu le bā nián le.
Really? You have smoked for eight years.
Chen Hao
上个月检查身体，医生说我的肺已经不太好了。
Shàng gè yuè jiǎnchá shēntǐ, yīshēng shuō wǒ de fèi yǐjīng bù tài hǎo le.
At my check-up last month the doctor said my lungs were not in good shape any more.
Xiaoyu
那确实得戒。你以前一天抽多少？
Nà quèshí de jiè. Nǐ yǐqián yī tiān chōu duōshao ?
Then you really do have to stop. How many did you smoke a day before?
Chen Hao
一天一包。这两天我把烟放在抽屉里，钥匙给了同事。
Yī tiān yī bāo. Zhè liǎng tiān wǒ bǎ yān fàng zài chōu ti lǐ, yàoshi gěi le tóngshì.
A pack a day. These past two days I have kept the cigarettes in a drawer and given the key to a colleague.
Xiaoyu
这个办法有意思。想抽的时候怎么办？
Zhè gè bànfǎ yǒu yìsi. Xiǎng chōu de shíhou zěnme bàn ?
That is a good idea. What do you do when you want one?
Chen Hao
就出去走一圈，或者喝一杯水。
Jiù chūqù zǒu yī quān, huòzhě hē yī bēi shuǐ.
I go out for a walk round, or drink a glass of water.
Xiaoyu
不但对身体好，而且一年能省下来六千多。
Bùdàn duì shēntǐ hǎo, érqiě yī nián néng shěng xiàlai liùqiān duō.
Not only is it good for your health, it saves more than six thousand a year.
Chen Hao
钱我还真没算过。
Qián wǒ hái zhēn méi suàn guò.
I had honestly never worked out the money.
Xiaoyu
那我跟你打个赌：坚持三个月，我请你吃饭。
Nà wǒ gēn nǐ dǎ gè dǔ : jiānchí sān gè yuè, wǒ qǐng nǐ chī fàn.
Then I will make you a bet: keep it up for three months and dinner is on me.
Chen Hao
好。你帮我记着日子，三个月以后我来找你。
Hǎo. Nǐ bāng wǒ jì zhe rìzi, sān gè yuè yǐhòu wǒ lái zhǎo nǐ.
Done. You keep count of the days, and I will come and find you in three months.
一支都没抽: not one single cigarette. The mould is 一 + measure word + 都 (or 也) + negative, and it denies more strongly than 没抽烟, which would say only that he did not smoke. It holds for anything countable: 一个人都没来, 一句话都没说. The measure word is compulsory, and it is what says what you are talking about.
真的假的 is a ready-made reaction, literally "true or false?". It marks astonishment at a piece of news, not doubt about the honesty of the speaker. Rendering it as "are you lying?" gets the register wrong: it is friendly and very common between people of the same age.
省下来 uses 下来 not for going down but to say that something stays, settles, is kept. The same value is found in 记下来 (to note down and keep), 留下来 (to stay behind), 停下来 (to stop and remain stopped). It is the abstract sense of the directional complement, and it is the one level C has to learn to recognise.
