big shot 大人物，大亨

He is a big shot in our little town.

black and white 白纸黑字

The proof is in black and white and the murderer has no any excuses.

blind alley 死胡同

You are heading into a blind alley.

blow hot and cold 摇摆不定

This guy seemed to have no own idea. He always blew hot and cold.

blow one's own trumpet 自吹自擂

Don't blow your own trumpet. Let us see what on earth you can do.

trust-fund baby 富二代

He is a trust-fund baby who spends money like drink water.

carry something too far 过火了

You are carrying your joke too far.

castle in the sky 海市蜃楼

You plan is nearly a castle in the sky.

cup of tea 喜欢

Movies are not my cup of tea.

cut it out 停止，住嘴

Cut it out! I can't stand you any longer.

dear John letter 绝交信

Jack received a dear John letter from his girlfriend because he had broken her heart.