1. I have a fire in my belly to do something for this village. 我有一股强烈的愿望，能为这个村庄做点什么。特别注意，这个成语与“一肚子火”没有关系，是表示有一种正面的强烈愿望。

I love this desire which comes from a fire in my belly.
　　一首歌的歌词：Fire in my heart, fire in my belly too Got a heart and a mind and a fire inside And I’m crazy about you You, you on your high flying cloud You, you when you’re laughing out loud.
　　Have a yen for也是口语，同样表示“I have a desire for”： I have a yen for a thick juicy steak. He has a yen for this girl.

2．Digital cameras are cheap now, you can get one for peanuts.
最便宜的东西莫过于花生，用买花生的钱就能买的东西，那当然是很便宜了。

以前美国南部产棉花，但棉花对土地有结板块的作用。后来农民发现棉花收割后种花生对土地有帮助，于是开始种花生。那时花生不过像杂草一样，农民任其烂在田里。直到发明了花生酱后，花生才渐渐地成为人们喜欢的食物。

3．Ball这个词人人都识，就是球的意思。但在口语里，还有三个其他的含义。

The little girl had a ball at school today. 这个小女孩今天在学校参加了一个舞会。

另外on the ball 的含义是，有知识，有才华，懂行，办事利索。
　　He is a teacher who is really on the ball. 他是个了不起的老师。a manager who has a lot on the ball很懂行的经理; a student who has nothing on the ball 学得一塌糊涂的学生
另一个说法表示一个人“能干”，可以说hot-shot：The boss would like to hire a hot-shot employee 能干的职员 a hot-shot teacher, 能干的老师，
Ball的第三个用法是having sex：They met, they clicked, they are having a ball.
I am glad you have started the ball rolling. 很高兴你把这事推动起来了。

4．You are so jumpy. 你真是有点神经质。
一个人兴奋得乱蹦乱跳,所以显得有点神经质.

5．Blur 模糊，

Taiwan talk is just a blur.
台湾问题的讨论不过是在搅混水。

The next hour is a blur to me.接下来的一个小时我就稀里糊涂了。

6．Tough, 这个词是口语中使用频率比较高的，a tough guy,

It is pretty tough to get a reservation. 这里的tough就是difficult得意思。You just have to tough it out.

7．Rough, 注意，rough与touch意思不同，容易混淆。

I have some rough patches with my wife. 我有好些地方得与老婆去磨合磨合了。

8．I am here now, I need to get in a swing of it.
我已经到了，该投入行动了。

9．More brawn than brain 四肢发达，头脑简单
Nowadays, pop-culture icons are more brawn than brain. 现在流行文化中的偶像都是些四肢发达，头脑简单的家伙。

10．Once you get to the meat of the subject, you will start to enjoy it.
Meat肉，这里做“精髓”解。Nub也有这个意思：the nub of the story