Polysaccharid
n. 多糖類
??? 情景例句
I'm going to the library to do some research.
我要去圖書館搞些調研。
No. Can't you see that rocket is almost falling down.
不。你不知道火箭快要倒下來了嗎？
Which do you prefer, horse riding or shooting?
你比較喜歡哪一種呢，騎馬還是射擊？