focus on yourself, enjoy being alone

大胆尝试，小心求证

dollars to donuts 十有八九，肯定

I will bet you dollars to donuts that this time she will not top in the exam.

over one’s heads 某事对某人来说超出能力之外，难以理解

I bought a computer last week, but operating the machine is over my head.

tell on sb.“告发某人”，孩子们告状

I'll tell my mummy on you.

世界上一定有不守规则的人，不必因此烦恼

a pain in your ass眼中钉，麻烦精，讨厌的人

My boss is a real pain in the ass. He always asks me to work overtime.

wok炒菜锅

peas in a pot一丘之貉，一模一样，形影不离

old college try尽最大努力去做一件事

I will make the old college try to pass the exam.

Romantic rival 情敌