Uba
abbr. undenatured bacterial antigen 非變性的細菌抗原
??? 情景例句
I have to do what I can do to support him.
我就應該盡我的力量來支持他。
When do you leave?
你何時起程？
After we had landed, the plane was searched thoroughly.
我們降落之后，飛機被徹底搜查了一遍。