Defease
vt. 使作废，废除(合同、契约等)：
🗣️ 情景例句
Mmm-hmm.
嗯。
I ought to explain to the manager.
我应该向经理解释。
People tend to amass possessions, sometimes without being aware of doing so.
人们喜欢收藏东西，有时并没有意识到自己在这样做。