| 单词 | 通气口 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔foramen〕An opening or orifice, as in a bone or in the covering of the ovule of a plant.孔：如骨头或食物的覆盖膜上的小口或通气口美国传统〔orifice〕An opening, especially to a cavity or passage of the body; a mouth or vent.通气口：一个开口，特别是身体上的洞口或通路；嘴或者通气口美国传统〔reed〕A flexible strip of cane or metal set into the mouthpiece or air opening of certain instruments to produce tone by vibrating in response to a stream of air.簧片：一节有弹性的置于某些乐器的吹口或通气口中的竹片或金属，随着气流振动而发声美国传统〔sphincter〕A ringlike muscle that normally maintains constriction of a body passage or orifice and that relaxes as required by normal physiological functioning.括约肌：一般保持身体管道或通气口的收缩，并能在正常的生理作用下放松的环状肌肉美国传统〔ventilate〕To provide with a vent, as for airing.提供通气口以通气美国传统 |
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