Uba
abbr. undenatured bacterial antigen 非变性的细菌抗原
🗣️ 情景例句
for giving me a passing grade.
给我及格分数。
Wherever you go you'll hear Spanish Spoken.
不管你到哪里，你总会听到西班牙语。
Don't look out of the window concentrate on your work.
别看窗外，专心工作。