Polyose
多糖
🗣️ 情景例句
I don't know what you are driving at.
我不知道你到底想说什么。
I'll have studied English for four years next March.
到明年三月，我就学了四年的英语了。[将来完成时，表示将完成…，会做完…]
Ling Feng, could you do something for me, please?
凌峰，你能为我做件事吗？