郑州新东方雅思听力：同义替换短语

　　1有害的: baneful, evil, detrimental, bad ， harmful 

　　ADJ destructive, poisonous, or fatal 毁灭性的; 有毒的; 致命的

　　2 消除:  spark off, take away, smooth away, eliminate, clear, remove

　　V to bring into being or action; activate or initiate 导致; 启动; 着手

　　•to spark off an argument

　　smooth away

　　A moisturiser will help temporarily smooth away some early fine lines. 润肤霜会有助于暂时抚平一些早期细纹。

　　3 确保：pledge, ensure， guarantee, assure

　　pledge V-T When someone pledges to do something, they promise in a serious way to do it. When they pledge something, they promise to give it. 保证 (做某事); 保证给予 (某物)

　　•The Communists have pledged to support the opposition's motion.共产党员们已经承诺支持反对党的动议。

　　•Philip pledges support and offers to help in any way that he can.菲利普承诺给予支持并提供力所能及的帮助。

　　4 有益的：useful, rewarding, profitable, advantageous， helpful, beneficial

　　advantageous /ˌædvənˈteɪdʒəs/

　　ADJ If something is advantageous to you, it is likely to benefit you. 有利的

　　•Free exchange of goods was advantageous to all.自由商品交易对大家都有利。

　　5  大约：approximately, roughly, about, around, nearly, almost

　　6 换言之：to put it differently, to put it from another way, to put it from another angle, that is to say, in other words,

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