Polyphosphate
多磷酸盐
🗣️ 情景例句
Of course. It's on the fifth floor of Building No.4. Let's go there.
当然可以。展室在四号楼五层，我们上去吧。
Hush! Talk quietly.
嘘！请小声讲话。
OK. But I'm afraid I may be a little late.
好。不过我恐怕会稍晚一点到。