allow (doing) sth 允许(做)某事.如：
The facts allow no other explanation.事实不允许有其他的解释.
We don’t allow eating in the classrooms.(我们)不允许在教室吃饭.
注：有时用于被动语态.如：
Dogs are not allowed.狗不得入内.
Smoking is not allowed here.此处不准吸烟.