英语词汇“to be useful”的释义、用法及例句-英汉例句词典

词汇	to be useful
例句	The book is likely to be useful, only it's rather expensive.这本书可能有用，不过相当贵。Once our services cease to be useful to them, we're expendable.一旦我们的服务对他们来说没有用了，我们就无关紧要了。
随便看	on your life onyx oodles Ooh oohing oomph ooze oozed ooze out oozes oozing oozing out opacity opalescence opalescent opals opaque opaqued opaque glass OPEC op-ed Opel Open open open admissions

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