写作的时候关变化或者不同的时候，能用到哪些词汇呢?
vary[变化/不同]/change/differ/alter;
various[各种各样的]/diverse;
variety[多样]/diversity;
variation[变化]/change/alteration;
variable/changeable/unstable/fluctuating/shifting/wavering/uneven;
variable[n.]变量;variably易变地;
upward/uphill/rising/climbing上升的
