Pbb
abbr. 多溴联苯（polybrominated biphenyl）
🗣️ 情景例句
... I care about people, not things.
……我关心人， 而不是东西。
Please be serious for a minute, this is very important.
请严肃点，这件事很重要。
We're going to leave at about seven thirty next Monday morning.
我们打算下星期一早上7：30 左右出发。