Polychlorobiphenyl
多氯联苯
🗣️ 情景例句
That's just what I was thinking.
我正是那么想的。
The worst misfortunes are these that never hzppen.
最大的不幸是害怕不会发生的不幸。
whether or not they wholly alienate landowners and those who live in the countryside.
他们是否弄得土地的主人和乡间的居民同他们反目。