Pentachlorocyclohexene
[医] 五氯环己烯
🗣️ 情景例句
He has a major toy buyer in Los Angeles,
他在Los Angeles有一个玩具大买主，
Ignorance is bliss.
眼不见为净。
Train compartments soon get cramped and stuffy.
车厢很快就变得拥挤、闷热，