Urachus
脐尿管
🗣️ 情景例句
Richard tells me you're a doctor.
Richard告诉我您是医生。
Excuse me, what time will the plane arrive in Tokyo?
对不起，请问飞机何时到达东京呢？
Such extreme cases must probably be taken with a grain of salt,
这种极端的事例虽不可全信，