| 单词 | carrier |
| 释义 | carrier n. 1. a person or thing that carries. 2. a person or company undertaking to convey goods or passengers for payment. 3. = carrier bag. 4. a part of a bicycle etc. for carrying luggage or a passenger. 5. a person or animal that may transmit a disease or a hereditary characteristic without suffering from or displaying it. 6. = aircraft-carrier. 7. a substance used to support or convey a pigment, a catalyst, radioactive material, etc. 8. Physics a mobile electron or hole that carries a charge in a semiconductor. Phrases and idioms carrier bag Brit. a disposable plastic or paper bag with handles. carrier pigeon a pigeon trained to carry messages tied to its neck or leg. carrier wave a high-frequency electromagnetic wave modulated in amplitude or frequency to convey a signal. |
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