英语词汇“helpful”的读音、翻译、释义、用法及例句-智慧网

词汇	helpful
释义	helpfulhelpfulD.J.:[ˈhelpful]K.K.:[ˈhɛlpfəl]adj.1.■给予帮助的, 有益的Our teacher gave us a lot of helpful books in maths.我们老师给了我们许多数学上有帮助的书。
随便看	down period downpipe down pitch downplay downpour down pour down-pour gate downpress down price clause down-promoter mutant down-promoter mutation downproofs downpunch down quark down quenching downramp downrange downrange measurement downrange site downrange station downrate down regulation down reversal downright downriver

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