when necessary翻译
when necessary的基本解释
读音: 美: 英:
必要时:在需要的时候,表示某件事情只有在必要的时候才会发生或进行。
例句
They are not afraid to tackle the issues or let the sparks fly when necessary.他们不怕应付这些问题, 必要时也不惜进行唇枪舌剑的激烈争论。《柯林斯英汉双解大词典》With any container that you choose, you need to ensure that it allows the water in it to drain when necessary.对于您选择的任何容器,您需要确保在需要的时候它能够排除里面的水。
A new system allows a combine harvester, say, to send a call over to a tractor-trailer so the driver can unload the grain as and when necessary.例如,一种新的系统允许联合收割机向牵引拖车发送呼叫,以便司机可以在必要的时候卸载谷物。
短语
be taken when necessary 必要时服用Replace GAP leader when necessary 有必要时为班长替岗
Maintain equipment when necessary 根据需要维修设备
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纠错
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