L'dwyer's tube
[医] 奥德外耶氏管(插管套管)
🧩 词语组成解析
🗣️ 情景例句
I need some good photos for my advertising, Mr. Stewart.
我做广告需要一些好照片， Stewart先生。
I took 6 boxes of biscuits.
我拿了六盒饼干。
What was the population of the less developed countries in 1950?
1950年不太发达国家的人口是多少？