Umbc
[医][=umbilical cord]脐带
🗣️ 情景例句
He needs to work.
他需要工作。
Would you speak a little louder?
请你说大声一点好吗？
But I didn't see much during the flight because there was too much cloud.
但我在飞行途中并没有看到什么东西，因为云层很厚。