be equal to 与...相等;胜任

Twenty-five added to fifteen is equal to forty.

15和25相加等于40。

Though in the green, he may not be equal to the task.

尽管他年富力强，却仍可能胜任不了这项工作。

I think watching this kind of films is equal to wasting time.

我认为看这种电影就等于在浪费时间。