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翻译词典生词本查词历史安装萌翻登录英/中signal英语 / 中文 词典 / 翻译考试等级：高中 / CET-4 / CET-6 / TEM-4 / TEM-8 / 考研 / TOEFL / IELTS英ˈsɪɡnəl美ˈsɪɡnəl信号；示意A gesture, action, or sound used to convey information or instructions.释义例句n.信号；标志The traffic signal turned red, so we stopped.交通信号灯变红，所以我们停下了。He gave the signal to begin the meeting.他发出了开始会议的信号。A strong radio signal was detected from the spacecraft.从航天器检测到强无线电信号。The referee's whistle is a signal for a foul.裁判的哨声是犯规的信号。She ignored all warning signals and continued driving.她无视所有警告信号，继续驾驶。vt.发出信号；示意（及物）He signaled the waiter for the bill.他向服务员示意要账单。The pilot signaled the tower about the emergency.飞行员向塔台发出紧急信号。She signaled her agreement with a quick nod.她快速点头示意同意。The coach signaled a change in tactics.教练示意改变战术。He signaled his intention to resign.他示意要辞职。vi.发信号；示意（不及物）The ship signaled for help in the storm.船只在风暴中发出求救信号。Drivers must signal before changing lanes.司机在变道前必须打信号。He signaled to the audience to be quiet.他向观众示意安静。The light signaled that it was safe to cross.灯光示意可以安全通过。She signaled with her hand to come closer.她用手示意靠近。词态变化第三人称单数signals复数signals现在分词signaling过去时signaled过去分词signaled短语搭配traffic signal交通信号灯warning signal警告信号emergency signal紧急信号turn signal转向灯signal processing信号处理更多相关派生词signaling/signalize/signalman同义词sign/indicator/cue/gesture/beacon混淆词single/sign记忆提示想象交通信号灯：红灯停、绿灯行，信号指挥行动，帮助记忆其核心含义。词根sign (from Latin 'signum', meaning mark or token)词缀-al (suffix indicating relation)词源源自拉丁语 'signum'，意为 '标记' 或 '信号'，在英语中演变为表示信息传递的方式。使用要点作为动词时，区分及物（vt.）和不及物（vi.）：及物动词后接直接对象（如 signal something），不及物动词常接介词（如 signal to someone）。名词形式广泛用于科技和日常生活。百科资料A signal is a gesture, action, or sound used to convey information or instructions. It plays a vital role in communication systems, such as traffic control, telecommunications, and computing. Signals can be visual (e.g., lights), auditory (e.g., alarms), or electronic (e.g., radio waves).
The term originates from Latin 'signum', evolving to denote indicators in various contexts. Effective signaling is essential for safety and coordination in modern society.扩展阅读Signal Definition & Meaning - Merriam-Websterhttps://www.merriam-webster.com/dictionary/signal词典内容由 AI 生成质量反馈绿色版权© 2025 北京软糯信息技术有限公司-京公网安备11011502038737号 -京ICP备2025123831号-1
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