Gmb
abbr. 胃粘膜屏障（gastric mucosal barrier）
🗣️ 情景例句
Four will be good.
4只应该够。
He alone is poor who does not possess knowledge.
没有知识，才是贫穷。
Here you are But you mustn't come home after a quarter past eleven.Do you hear?
拿去。但你不能超过11点1刻回家。听见了吗？