Ectotrachea
气管外层
🗣️ 情景例句
How is he making out in his job now?
他的工作进展如何？
I've studied the reports of past meetings.
我学习了以往的会议记录。
They all went up some narrow steps into a large room.
他们全都登上这些狭窄的台阶，接着进入一个大房间。