例句：
Twenty-eight is divisible by seven.
二十八可以被七整除。
It's twenty years since I've seen her.
我已经二十年没见她了。
I've been waiting (for) twenty minutes.
我等了二十分钟。
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2021-09-10
例句：
Twenty-eight is divisible by seven.
二十八可以被七整除。
It's twenty years since I've seen her.
我已经二十年没见她了。
I've been waiting (for) twenty minutes.
我等了二十分钟。