Ectotrachea
气管外层
🗣️ 情景例句
They'll find the owner.
他们会找到主人的。
Our guarantee covers maintenance for both parts and labor.
我们的保证是包括更换零件和免费保养。
a moment later, he ran after me and thrust the pen into my hands.
一会儿，他突然从后追了上来，把笔塞到我手里。