Trichlorphon
敌百虫
🗣️ 情景例句
It was not until yesterday that I noticed it.
我一直到昨天才注意到它。
Where are you going?
你去哪儿？
Oil rigs have to be repaired frequently and divers,who often have to work in darkness a hundred feet under water,
钻井平台需要经常修理，潜水员常常要在水面100英尺以下摸黑工作，