V2EX signal

Signal

释义 Definition

signal 常指“信号;信号灯;指示”,也可指“发信号(示意、传递信息)”。在日常与科技语境中常见,如手机信号、交通信号、警报信号等。(另有“信号传递/信号处理”等专业用法。)

发音 Pronunciation

/snl/

例句 Examples

The phone has no signal here.
这里手机没有信号。

The sudden drop in sales was a signal that our strategy needed to change.
销量突然下滑是一个信号,表明我们的策略需要改变。

词源 Etymology

来自拉丁语 signum(“标记、记号”),经由法语进入英语,核心含义一直围绕“用某种标记来提示或传达信息”,后来扩展到“无线电/电子通信中的信号”等现代含义。

相关词 Related Words

文学作品 Literary Works

  • Moby-Dick(Herman Melville):常见与航海“信号”“旗语”等语境相关的用法。
  • The War of the Worlds(H. G. Wells):涉及通信与天文现象时会出现“signal(s)”等词。
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