Gmb
abbr. 胃粘膜屏障（gastric mucosal barrier）
🗣️ 情景例句
I've been in China to work on the new project.
我一直在中国搞一个新项目。
To sink
沉下
Other types of bee make their nests in holes in the ground.
其他种类的蜂在地穴里筑巢。