Tetraphosphate
四磷酸盐
🗣️ 情景例句
First, they have an excellent School of Journalism.
首先 ，那儿有个很优秀的新闻研究所。
You're very kind to take the trouble to help me.
谢谢你不怕麻烦帮助我。
Certainly, Mum! What shall we cook?
当然啦，妈！ 我们做什么菜？