when.如：He told them that you cannot judge a tree,or a person,by only one season,and that the essence of who they are and the pleasure,joy,and love that come from that life can only be measured at the end,when all the seasons are up.
他告诉儿子们不可用一个季节的风景来评断一棵树或是一个人,关于构成一个人是怎样的一个人的要件,还有一个人生命的欢愉、喜乐、爱,只能在他生命的尽头时候来做衡量.