【signal音标】 英[ˈsɪgnəl] 美[ˈsɪgnəl]
【单词释义】 signal是什么意思：
n.信号，暗号；指示灯，信号灯；预兆，征象；动机；导火线
vt.向…发信号；发暗号；示意；用动作（手势）示意；以信号告知
vi.发信号
adj.显著的，优越的；暗号的，作信号用的
[单词分级] 高考英语词汇
[单词复数] signals [第三人称单数] signals
[单词现在分词] signalling
[单词过去式] signalled
[单词过去分词] signalled
【关联词/派生词】
sign n.符号；手势 v.签名；打手势
signature n.签名；署名
【单词例句】
◇ From then on, the appearance of computers totally changed our lives. They can not only download information from the wet when connected by the network or mobile phone signals, but also solve different types of logical problems.
从那时起，电脑的出现完全改变了我们的生活，它们不仅能在网络或移动电话信号的连接下从网上下载信息，而且可以解决各种类型的逻辑问题。
---- Computers
◇ The researchers also discovered more signals of exoplanets in the system.
研究人员还在星系中发现了更多系外行星的信号。
---- NASA finds potentially habitable super-Earth
◇ When you want to lower your body temperature, chilling those pulse points with cold water or ice sends a signal to the brain that says, “I’m cold.” This tricks your brain into turning down its thermostat.
想降低体温时，用冷水或者冰块冷敷这些脉搏点会向大脑传递一个信号——“我好冷”。这样做可以欺骗大脑让它降低身体“恒温器”的温度。