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单词 signal
释义 词性词形谱(n)signal(n)signaller signalling signalman(v)signalize(ad)signally
signal 高中必修500 全国卷频次:5 教材出处:译林版必修B3U2
/ˈsɪɡnəl/
n.&v. signals 2signals 0 signalling 0 signalled 0
信号 & 用信号通知,标志;发信号,打信号

高考真题原句提选:

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.】绿灯表示这三种营养素的含量是健康的;黄灯表示顾客应该 "警惕";红灯表示该食品至少含有三种营养素中的一种,应该 "适量 "食用。(2014年上海卷语法及词汇B节)Signal rescuers for help.向救援人员发出求救信号。The best time to signal rescuers is during the day.向救援人员发出信号的最佳时间是白天。Signals were also poor that far out.那么远的地方信号也很差。The computer also counts the loads and gives a signal by phone when the box is full.电脑也会计算载荷,并在箱子满时通过电话发出信号。
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