Ectotrachea
气管外层
🗣️ 情景例句
You sound excited about Columbia.
听起来你对Columbia大学跃跃欲试。
How ofter did I tell you to sit straight?
我告诉你多少次要坐正?
All the stories of families, heroes, wars and journeys are passed down from generation to generation.
所有家族、英雄、战争、旅行的情况都是世代口传的。