allow 意为“允许；准许”，有以下几种用法：
（1）allow 名词/代词 允许…… 例如：
We can't allow such a thing.
我们不容许这种事情发生。
（2）allow doing sth. 允许做某事 例如：
We don't allow smoking in the reading room.
我们不允许在阅览室吸烟。
（3）allow sb. to do sth. 允许某人做某事 例如：
She allowed me to go fishing.
她允许我去钓鱼。
（4）sb. be allowed to do sth. 某人被允许做某事 例如：
The students are allowed to play games on the playgroud after school.
放学后学生们被允许在操场上做游戏。
Let's have a try.
谢谢！
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