| 单词 | indicator |
| 释义 | indicator n. 1. a person or thing that indicates. 2. a device indicating the condition of a machine etc. 3. a recording instrument attached to an apparatus etc. 4. a board in a railway station etc. giving current information. 5. a device (esp. a flashing light) on a vehicle to show that it is about to change direction. 6. a substance which changes colour at a given stage in a chemical reaction. 7. Physics & Med. a radioactive tracer. |
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