buzzkill [ˈbəz-ˌkil]

败兴者（名词，俚语）

(noun, SLANG) Someone or something that habitually ruins any pleasant experience.

EXAMPLE: My grimly serious colleague is a buzzkill who stands around looking sad at office parties and talking about how everything costs too much.

我的这位冰冷严肃的同事实在败兴，在公司聚会上，他脸色难看地站在一边旁观，还说这一切花费太大。

to blurt out

脱口而出

To speak suddenly and impulsively with great emotion.

EXAMPLE: When his favorite team is winning, my enthusiastic friend blurts out loud cheers while listening to radio broadcasts of basketball games.

我的朋友在听收音机转播篮球赛，当听到最喜欢的球队获胜时，富有激情的他不禁高声欢呼。