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詞匯 signal
釋義 詞性詞形譜(n)signal(n)signaller signalling signalman(v)signalize(ad)signally
signal 高中必修500 全國卷頻次:5 教材出處:譯林版必修B3U2
/?s?ɡn?l/
n.&v. signals 2signals 0 signalling 0 signalled 0
信號 & 用信號通知,標志;發(fā)信號,打信號

高考真題原句提選:

A green light 【signals】 that the amounts of the three nutrients are healthy; yellow indicates that the customer should be 【alert】; and red means that the food is high in at least one of the three nutrients and should be eaten in 【moderation.】綠燈表示這三種營養(yǎng)素的含量是健康的;黃燈表示顧客應該 "警惕";紅燈表示該食品至少含有三種營養(yǎng)素中的一種,應該 "適量 "食用。(2014年上海卷語法及詞匯B節(jié))Signal rescuers for help.向救援人員發(fā)出求救信號。The best time to signal rescuers is during the day.向救援人員發(fā)出信號的最佳時間是白天。Signals were also poor that far out.那么遠的地方信號也很差。The computer also counts the loads and gives a signal by phone when the box is full.電腦也會計算載荷,并在箱子滿時通過電話發(fā)出信號。
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