他真是个败家子。He is the black sheep of his family.

她是个天生爱哭的人。She's a natural crier.

他真是个不知羞耻的家伙。He's really a law-down dirty shame.

他可是个乐天派，整天无忧无虑的。He's good-time Charlie, feeling no worries and anxieties.

我已绞尽了脑汁。I had racked my brain.

他可是个有头脑的人。He's a brain.

他喜欢单枪匹马地去干。He always likes to play a lone hand.

他一开始就出师不利。He got off on the wrong foot when he started doing it.

你还嫩点儿。 You're still wet behind the ears.

她的饭量特别小。She eats like a bird.

那个孩子的嘴特别硬。That boy never says uncle.

我们队占上风。Our team gained the upper hand.

你中圈套了。You rose to the bait.

你骗不了我。I'm from Missouri.

见机行事 Play to the score.

肯定有人唆使他去干那件事。There must be someone who had put him up to that.(正式：唆使＝instigate)

事到如今，我们也只好听其自然了。With things as such, we'll have to let things slide.

这几天不知是什么事把我搞得心烦意乱的。I don't know what has set my nerves on edge these days.

让过去的事过去吧，我们还是好朋友。Lit bygones be bygones. We are still friends.

算了吧。I's call it quits.

她的嘴很紧。She's tight-mouthed.

别跟我瞎吹了，我又不是不了解你底细。No big talk with me. I have your number.

玲玲是她爷爷的掌上明珠。Ling Ling is the apple of her grandpa's eye.

从人口数量方面讲，印度仅次于中国。Talking about the size of population, India is next only to China.

我可不愿意白吃白喝别人。I wouldn't freeload.

对牛弹琴 casting pearls before swine.

我不知道。那只是我瞎猜的。I didn't know. I was only a shot in the dark.

他们开车到外面兜风去了。They drove the car and went out for a spin.

你为什么总拿别人开心？ Why should you always like to rib others?