Submucosal
[医] 粘膜下层的
🗣️ 情景例句
Examinations are at hand.
考试在即。
How do you spend your leisure time?
你怎样打发业余时间？
There is space for summer picnics, open-air concerts, plays and games.
这儿有空旷的地方，供作夏日野餐、露天音乐会、各种娱乐和竞赛之用。