Tunica externa
[医] 外膜(血膜)
🧩 词语组成解析
[医] 膜, 被膜
🗣️ 情景例句
And?
结果呢？
It won't fit; you'll have to go to the post office.
那不行，你必须去邮局才行。
No, look, it says Closed. It's not open this morning.
不对，看！写着“关门”的，今天早上不开。