This is something serious, it shouldn't be brushed off.  此事非同小可，不能等閒視之。

42. 跌破眼鏡  one's jaws dropped

Everyone's jaws dropped when she got married. 她結婚了，令大家跌破眼鏡。

She hired a detective to shadow her husband. 她雇了私家偵探盯梢她丈夫。

He's been touchy these days. 他這一陣子動不動就發火。

Women often spread rumors about others. 女人總愛東家長西家短。

He has got back on his feet, better than before. 他東山再起，表現比從前更好。

Tell the truth.  Quit beating around the bush. 說實話，別兜圈子。

It is like casting pearls before swine to talk about this to him. 和他談這個簡直是對牛彈琴。

Think before you do.  Don't be a jerk. 做事之前先想一下，不要當二百五。

That picture has opened the eyes of all students. 那圖畫令學生們耳目一新。

He just went off all of a sudden. 他說翻臉就翻臉。

You are such an airhead! 你真是個飯桶！

She often makes insensitive remarks. 她常說風涼話。

All of this talking is neither here nor there. Let's get the point. 別淨扯風馬牛不相及的事，言歸正傳吧！

It is too early to conclude this matter. 現在對這事蓋棺論定為時過早。

He is angry, but his hands are tied. 他很生氣，但也只有乾瞪眼。

My boss put me on the spot to do the work. 老闆要我做這工作，真是趕鴨子上架。

She feels she doesn't fit in with those people. 她覺得和那些人格格不入。

I'm no stranger to English. 我是英文的個中老手。

Don't listen to him.  He's a buttinski. 別聽他的，他只是個狗頭軍師。