顶多: at (the) most; at best 短语和例子我想他顶多有15岁。 i think he is fifteen at (the) most
充其量: (至多) at most; at best; at the maximum; at the (very) outside 短语和例子充其量不过20个人。 there were twenty people at the (very) outside. 今天下午我们充其量只能完成一半。 we can only finish half of it this afternoon a
