I know when it is necessary, how to leave the skin of lion to take one of fox.
我懂得如何在需要的时候，用狮子的皮去抓住狐狸。
When there is a fire, it is necessary to take immediate action.
发生火灾时，必须采取紧急的行动。
Carney also said that when necessary to take quantitative easing.
卡尼还表示，在必要的时候会采取量化宽松。
Do not forget to take notes when necessary.
必要的时候别忘了记笔记。
Do not forget to take notes when necessary.
必要的时候别忘了记笔记。
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