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	heat-toughened heat-toxicity heat-toxicity in xuefen heat traced pipeline heat tracing pipelining heat transfer heat transfer agent heat-transfer agent heat-transfer arrangement heat transfer by conduction heat-transfer by conduction heat-transfer by convection heat-transfer by radiation heat-transfer capability heat-transfer character heat transfer coefficient heat transfer computer heat-transfer conductance heat-transfer control heat-transfer cycle heat transfer efficiency heat transference heat transfer equation heat-transfer equipment heat transfer factor

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