respiratory tract是什么意思 respiratory tract怎么读
respiratory tract的英文翻译是什么意思，词典释义与在线翻译
Noun:- the passages through which air enters and leaves the body
respiratory tract的用法和样例
- He had an infection in the upper respiratory tract.
他上呼吸道感染。 - People with respiratory infection symptoms.
有呼吸道受感染症状的人士。
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