New Words：

pound [paʊnd] 英镑
cost [kɔːst] 费用;花费;价钱;成本

Sample Sentences:

Fifty pounds is the best I can give you.
It will cost two, maybe three hundred pounds.

We must think of the cost.
It cost him five hundred.
How much does the jacket cost ?

New Words：

fit [fɪt] 适合，合身
should [ʃʊd] )应该，应当

Sample Sentences：

I can't find clothes to fit me.
This is not a fit place for you to live.
Try these shoes for size ─ they should fit you.

Look, I think we should go now.
You should look out for yourself.
I think we should go back to first place.

New Words：

invent [ɪnˈvent] v. 发明;创造;编造;捏造;虚构
inventor [ɪnˈventər] 发明者;发明家

Sample Sentences：

He invented a new game.
How do you invent a language?
I'm going to invent a new robot.
I can see you're trying to invent something!
You kids just like to invent more work for me.
He is the inventor of the robot.

New Words：

jacket [ˈdʒækɪt] 夹克衫;短上衣
size [saɪz] 大小;尺寸;尺码

Sample Sentences：

That jacket was a really good buy.
This jacket is just my size.
The jacket was the wrong size.
They didn't have the jacket in my size.

New Words：

poster [ˈpoʊstər] 海报；招贴画；宣传画；标语

Sample Sentences：

He put the poster on the wall.
They are putting up a poster.
The poster reads “No smoking!”