[diū diào]

I've lost my pen.
我丢掉了一支笔。

discard mistaken views
丢掉错误观点

drop a bad habit
丢掉坏习惯

cast away illusion
丢掉幻想

He lost his job as a result of the dispute.
由于这次争端， 他的工作丢掉了。