Polyphosphate
多磷酸盐
🗣️ 情景例句
Your brother left his bag of film on the ferryboat.
你哥哥将他的旅行袋遗放在渡船上了。
You are younger than I am.
你比我年轻。
What shall we do today? The weather's not very good.
我们今天该做什么呢？天气很不好。