Ectotrachea
气管外层
🗣️ 情景例句
Change the light bulb, it's burnt out.
换一个灯泡吧，它烧坏了。
Would you ever have imagined him becoming a politician?
你想过他能当上政治家吗？
Can you see the machine in that corner?
你们能看见那个角落的机器吗？