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n (1) 回聲(音) (second sound heard after the first sound has bounced off a surface such as a rock face) [C]：We shouted at each other inside the tunnel so that we could hear our～es. 我們?cè)谒淼览锘ハ嗪敖幸员隳軌蚵?tīng)到我們的回聲。The canyon produces loud～es. 這個(gè)峽谷發(fā)出巨大的回聲。

(2) 反響; 附和(者) (person or thing that imitates sth，as of the opinions，speech，or dress of another) [C]：She is an～of her master/of her husband's opinion. 她是她主人/她丈夫觀點(diǎn)的附和者。an～of an early style 對(duì)從前樣式的模仿; find an～in one's heart 與某人取得共鳴;

(3) (無(wú)線電)回波 (any reflected wave，as in radio or，esp in radar) [C]： radar～雷達(dá)回波;

vt (1) 發(fā)出回聲(音) (send back an echo of) [T+n，T+n+adv(back)]：The valley～ed his song/his shout. 他的歌聲/喊叫在山谷中激起回響。The sound of thunder was～ing back from the mountains. 雷聲從山中反射回來(lái)。

(2) 重復(fù)，模仿 (repeat or imitate) [T+n]：～what sb is thinking/what sb says/the thoughts of a leader/sb's feeling/sb's opinion 重復(fù)(模仿)某人的想法/某人所說(shuō)的話/領(lǐng)導(dǎo)人的思想/某人的感情/某人的觀點(diǎn); The fashion～es the taste/the style of the 1930's. 這種款式模仿20世紀(jì)30年代的情趣/風(fēng)格?！纪?repeat，imitate，copy