Measure word
- 个 gè (classifier used before a noun that has no specific classifier); (bound form) individual attested in use
Stroke order
Show the animation Stroke data from Make Me a Hanzi, derived from the Arphic PL fonts under the Arphic Public License.
Show the animation 
Stroke data from Make Me a Hanzi, derived from the Arphic PL fonts under the Arphic Public License.
How it used to be written
以
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Oracle bone script 商 -
Clerical script 東漢 - See all 15 forms
后
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Oracle bone script 商 -
Clerical script 東漢 - See all 10 forms
Forms, sources and dates: the 字形演變 database of 小學堂, Academia Sinica, public domain (CC0).
Examples
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上课时她是我们的老师，下课以后是我们的朋友，而且是很好的朋友。
In class she's our teacher; after class she's our friend, and a good friend too.
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九点以后打电话更便宜吗？
Is it cheaper to call after 9:00?
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五十岁以后学一门新的语言不是那么容易。
It's not that easy to learn a new language after fifty.
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从此以后我自由了。
Now I am free.
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从那时以后，我们再也没听到他的任何音讯。
Thereafter we heard no more from him.
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以后再讲.
Talk to you later.
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以后请注意点。
Please take more care in the future.
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在美国，大多数人能在十八岁以后投票。
In the U.S., most people can vote when they reach eighteen years of age.