Polysaccharides
多糖
🗣️ 情景例句
If you find it unworkable, we have no other choice but to call the deal off.
如果不行的话，我们只好放弃了。
which direction is it to the theatre?
它哪个方向对剧院？
Both the police and the workmen were grateful to the student for this piece of advance information.
警察与工人都对那个学生事先通报情况表示感谢。