1.withdraw v. 撤退；撤走；拿走；（从银行）取（钱）

例句：He stated that all foreign forces would withdraw as soon as the crisis ended.
他声明危机一结束，所有外国军队都将撤离ER03vr]cVu7pD]RWoD。

2.invaluable a. 无价的；极有用的；极宝贵的

例句：The book is an invaluable aid to teachers of literature.
这本书对于教授文学的老师来说帮助非常大C*cCQXy@4Cd5zUxb)O%。