overwhelm和overcome 的区别

overwhelm是压倒的意思，而overcome则是克服的意思，区别可以从以下例子看出：

The mountain is so big, we did feel we are overwhelmed, we have to overcome this feeling before we can cross the road. 山那么大，我们确实有觉得自己被压倒的感觉，我们必须克服这种感觉才能过这段路马。