Theca externa
[医] 外膜(卵泡)
🧩 词语组成解析
n. 囊, 膜, 鞘\\n[医] 膜, 鞘
🗣️ 情景例句
The pollution in Beijing is alarming.
北京的污染给人们敲起了警钟。
Attitudes towards drinking and smoking in the U.S. are, in some ways, very different from those in Asia.
在对烟酒所采取的态度上，美国和亚洲在某些方面是非常不一样的。
Each time you fail, start all over again.
每次你失败，再从头开始。