New words：

brain [brein] n. 脑；脑力；智力

Sample Sentences：

In this job you need both brains and brawn.
I suppose she has more brains than any of us.
We do not fully understand how the brain is organized.

suppose [sə'pəuz] v. (根据所知)认为，推断，料想；假设；假定；设想
brawn [brɔ:n] n. 体力

New words：

criticize ['kritisaiz] v. 批评；评论；抨击；挑剔

Sample Sentences：

You have done your best; I have nothing to criticize.
Would you like to read and criticize my new novel?
People often lose confidence when they are criticized.

New words：

criticism ['kriti.sizəm] n.批评；批判；评论；指责

Sample Sentences：

I accepted his criticism of my behavior.
Some youth today do not allow any criticism at all.
He hates to hear criticism and he hates to be criticized.

criticize ['kritisaiz] v. 批评；评论；抨击；挑剔

New words：

air conditioner 空调
air conditioning 空调
aircondition 空调

Sample Sentences：

Our air conditioning has broken down.
She couldn't get the air conditioner going.

New words：

loss [lɔs] n.损失；丢失；亏损；丧失；失败

Sample Sentences：

The gain is greater than the loss.
His death means a great loss to science.
The loss of the first game did not discourage them.