Uba
abbr. undenatured bacterial antigen 非变性的细菌抗原
🗣️ 情景例句
I have to do what I can do to support him.
我就应该尽我的力量来支持他。
When do you leave?
你何时起程？
After we had landed, the plane was searched thoroughly.
我们降落之后，飞机被彻底搜查了一遍。