signal

英 ['s?gn(?)l] 美['s?gnl]
  • n. 信號;暗號;導火線
  • vt. 標志;用信號通知
  • adj. 顯著的;作為信號的
  • vi. 發(fā)信號
  • n. (Signal)人名;(瑞典)西格納爾

CET4TEM4IELTSGRE考研CET6中頻詞基本詞匯

詞態(tài)變化


復數(shù):?signals;第三人稱單數(shù):?signals;過去式:?signalled;過去分詞:?signalled;現(xiàn)在分詞:?signalling;副詞:?signally;

助記提示


1、sign- + -al.
2、動態(tài)的符號,就是信號、暗號。

中文詞源


signal 信號,暗號,標記,表明

sign,標記,記號,-al,名詞后綴。引申詞義信號,暗號等。

英文詞源


signal
signal: [16] Latin signālis meant ‘of a sign’ (it was derived from signum ‘mark, token’, source of English sign). It came to be used as a noun, and passed via medieval Latin signāle into Old French as seignal. This was later relatinized into signal, in which form it was taken over by English. The adjective signal ‘conspicuous’ came from the same ultimate source, but via a more circuitous route. The Italian version of the noun signal is segnale. From it was derived the verb segnalare ‘make famous’, whose past participle segnalato gave French signalé – whence English signal.
=> sign
signal (n.)
late 14c., "visible sign, indication," from Old French signal, seignal "seal, imprint, sign, mark," from Medieval Latin signale "a signal," from Late Latin signalis (adj.) "used as a signal, pertaining to a sign," from Latin signum "signal, sign" (see sign (n.)). Restricted sense "agreed-upon sign (to commence or desist, etc.) is from 1590s. Meaning "modulation of an electric current" is from 1855.
signal (v.)
1805, "to make signals to," from signal (n.). Related: Signaled; signaling. Earlier verb was signalize (1650s).
signal (adj.)
"remarkable, striking, notable" ("serving as a sign"), 1640s, from French signalé, past participle of signaler "to distinguish, signal" (see signal (n.)).

雙語例句


1. The coded signal is received by satellite dish aerials.
編碼信號由碟形衛(wèi)星天線接收。

來自柯林斯例句

2. As soon as it was dark, Mrs Evans gave the signal.
天一黑,埃文斯夫人就發(fā)出了信號。

來自柯林斯例句

3. The transmitters will send a signal automatically to a local base station.
發(fā)射臺會自動將信號發(fā)射到地方基站。

來自柯林斯例句

4. A thin cable carries the signal to a computer.
一根細電纜將信號傳送給一臺計算機。

來自柯林斯例句

5. Kurdish leaders saw the visit as an important signal of support.
庫爾德領(lǐng)導人將這次訪問視作一種表示支持的重要信號。

來自柯林斯例句

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