柯林斯詞典emit /??m?t/ (emitting,emitted,emits) 1. V-T If something emits heat, light, gas, or a smell, it produces it and sends it out by means of a physical or chemical process. 發(fā)出; 散發(fā) (熱、光、氣躰或氣味)[正式] The new device emits a powerful circular column of light. 這個(gè)新裝置發(fā)出一束強(qiáng)烈的環(huán)形光柱。2. V-T To emit a sound or noise means to produce it. 發(fā)出 (聲音或噪音)[正式] Whitney blinked and emitted a long, low whistle. 惠特尼眨了眨眼，吹出了一聲長(zhǎng)而低沉的口哨。 返回 emit劍橋詞典to send out a beam , noise , smell , or gas 發(fā)出，射出，散發(fā)（光、噪聲、氣味或氣躰） The alarm emits infrared rays which are used to detect any intruder . 警報(bào)器能發(fā)出紅外線探測(cè)闖入者。 The machine emits a high-pitched sound when you press the button . 一按這個(gè)按鈕，機(jī)器就會(huì)發(fā)出尖厲的鳴叫聲。 返回 emit