Alkron
对硫磷, 一六○五, 二乙基对硝基苯硫代磷酸酯
🗣️ 情景例句
The children's performances brought down the house.
孩子们的演出博得满场喝彩。
After meat, mustard.
雨后送伞。
He had been the first to turn a telescope to the sky,
他是第一个把望远镜对准天空的人，