Pneumohypoderma
皮下气肿
🗣️ 情景例句
And your friends are planning to go to Columbia?
而且你的朋友们也准备上Columbia大学 ，对吗？
He is playing on the merry-go-round in the park.
他正在公园里骑旋木马。
I'm afraid some people forgot to sweep the floor.
它不如平时干净，恐怕是一些人忘记扫地了。