Annulation
n. 環\\n[化] 增環反應; 成環; 成環反應
? 同義詞
??? 情景例句
are important for the sales of your book.
對于你這本書的銷售很重要。
It really comes in handy.
有了它真是方便。
It's ready.Do you want any milk?
咖啡好了，你要放點奶嗎？