◎ upend是什么意思 v. 颠倒, 倒放 v. become turned or set on endv. set, turn, or stand on end upend的用法和例句： 1. and you'd upend their lives all over again. 你会再一次颠覆他们的生活 2. It upended all of our theories about physics. 它颠覆了我们所有的物理...
