Pbb
abbr. 多溴联苯（polybrominated biphenyl）
🗣️ 情景例句
Yes?
是吗？
The morning to the mountain the evening to the fountain.
凡是都有一定时间。
For instance, if you are older you have less time to recover from any major losses,
比如说，如果你年纪较大，你从重大投资损失中恢复过来的时间就较少，