20用英文表达为：twenty；
twenty：
num.二十;二十几;二十年代
复数： twenties
It's twenty years since I've seen her.
我已经二十年没见她了。
We've been here twenty years, near enough.
我们在这里待了差不多二十年了。
We have lived in the same house for twenty years.
我们在同一座房子里住了二十年了。
I was twenty years old and ready for anything.
我当时二十岁，什么都愿意去做。
Twenty guests are enough, I would have thought.
我觉得二十位客人就够了。
There were twenty or so people there.
那儿有差不多二十个人。
Pick a number from one to twenty.
从一至二十中挑选一个数。
He finally won his freedom after twenty years in jail.
他蹲了二十年监狱以后终于获得了自由。
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