- 1
A detector is a machine or a piece of equipment that finds or measures something. A smoke detector listens for smoke in the air. A metal detector finds metal in bags or in the ground. A carbon monoxide detector watches for a dangerous gas you cannot smell. Though actually, a “lie detector” is supposed to catch signs that someone is not telling the truth — but many scientists say those machines are not as sure as films make them look. At home and at the airport the word is everyday; in a lab it can sound more technical (a particle detector, a motion detector).
偵測器（煙霧偵測器、金屬探測器）
組成Borrowed from Latin dētēctor. Equals detect + -or, the suffix that names the one (here, usually a machine) that does the action.
同家族的字
- detectthe verb for finding what is not obvious
- detectionthe finding, or the process of looking
- detectableable to be found by a person or a detector
原始詞典資料3 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
detectornoun/dɪˈtɛktə(ɹ)/
- 1
A device capable of registering a specific substance or physical phenomenon, and that optionally sounds an alarm or triggers a warning.
- Smoke detectors are mandatory in public buildings.
- At 2255, it passed a hot axle box detector at Great Bridgeford. No problem here - the detector detected no abnormal temperatures anywhere in the consist.
- 2
A device capable of registering a specific substance or physical phenomenon, and that optionally sounds an alarm or triggers a warning.
- 3
A device capable of registering a specific substance or physical phenomenon, and that optionally sounds an alarm or triggers a warning.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。