英语词汇“do a service”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典-复社网

单词	do a service
释义	do a service freq. 4 dict. 2 (为…)效劳[帮忙],作出贡献;效劳,贡献
随便看	feed value of mulberry leaves feed valve feed valve block feed valve body feed valve gasket feed valve stem nut feed vane feed vaporizer feed variator feed velocity feed-voltage feed-voltage modulation feed volume feed warming feed waste feed water feedwater feed-water feed-water accumulating, preheating feed-water accumulator feed-water accumulator connected to steam boiler feed-water accumulators in chambers feed-water accumulators in combustion chambers feed water analysis feed-water and condensate plant

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