needing
v.
需要，必须( need的现在分词 );
（表示应该或不得不做）有必要;
例句:
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The longer your child can go without needing a filling, the better.
孩子越晚需要补牙就越好。
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Every eventuality is covered, from running out of petrol to needing water.
从汽油耗尽到用水紧缺，所有可能发生的事情都考虑到了。
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I will be needing a new pair of shorts soon.
我很快就需要一条新短裤.
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Well be needing that regardless of the electricity source.
来自SA
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I am supposed to be past needing such things.
来自NEWYORKER
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Self-defined, self-consistent, not needing further explanation.
来自SA