cast a damper on的用法和樣例：
例句
- The bad news put a chill on the celebration.
壞消息使得慶祝大大掃興。 - After a promising start, things began to turn sour.
起先是很有希望的，后來(lái)卻開(kāi)始變得讓人掃興。
- There is a need for a curb on downloading papers.
有必要抑制下載論文的勢頭。 - As we talked, I felt a joy I could not restrain.
我們交談時(shí)，我感到一種無(wú)法抑制的高興情緒。
