Perphosphate
过磷酸盐
🗣️ 情景例句
The Post Office aims to improve its quality of service.
邮局锐意改善服务质量。
He already has a phonograph,but he doesn't have a radio yet.
他已经有一架留声机，但是他还没有收音机。
He offered to train Mendoza and his young pupil was quick to learn.
他主动提出教授门多萨，而年少的门多萨一学就会。