Perphosphate
过磷酸盐
🗣️ 情景例句
He's on the phone.
他在电话上。
Paul started with surprise when Jim tapped his shoulder.
当吉姆拍了保罗的肩膀时，保罗吓了一跳。
No wonder you're so experienced.
怪不得你这么有经验。