Cotamer
八聚物
??? 情景例句
What if we can't tie the tie?
如果我們弄不好領結怎么辦？
I wonder why they're angry.
伙計，他們為什么生氣？
A short while ago, my sister helped me to carry one of my old bookcases up the stairs.
幾分鐘前，我妹妹幫我把一個舊書櫥抬上了樓。