Tcdd
[化] 四氯二苯并二┭英
🗣️ 情景例句
I'm afraid the cardboard boxes are not strong enough for transport by sea.
我担心这种纸箱，用于远洋运输，不够结实。
Did you wash this yourself?
你自己亲自洗了这个？
'Cats behave like well-trained paratroopers.' a doctor said.
“猫就像训练有素的跳伞队员，” 一位医生说。