New Words：

reply [ri'plai]
v.答复；回答；回应
n.答复；回答

Sample Sentences：

She only replied with a smile.
He has not yet replied to my question.
I asked her what her name was but she made no reply.
She replied that she was happy to accept our invitation.

so far 到目前为止；迄今为止；至今
invitation [.invi'teiʃən] n. 邀请；邀请函

New Words：

contain [kən'tein] v. 容纳；包含
vitamin ['vaitəmin] n. 维生素
cereal ['siəriəl] n. 麦片粥, 谷类食物

Sample Sentences：

The pill contains vitamins.
Lemons are rich in vitamin C.
I have a bowl of cereal every morning.
This drink doesn't contain any alcohol.
This book contains all the information you need.

New Words：

liquid ['likwid]
n.液体
adj.液体的；液态的

Sample Sentences：

Oil, milk and water are all liquids.
Kate is a pretty girl with large liquid eyes.
How much liquid do you think this bottle contains?

contain [kən'tein] v. 容纳, 包含

New Words：

solid ['sɔlid]
n.固体
adj.固体的

Sample Sentences：

Cheese is a solid; milk is a liquid.
Water becomes solid when it freezes.
The boat bumped against a solid object.

liquid ['likwid]
n.液体
adj.液体的；液态的

New Words：

melt [melt] v. 融；熔化

Sample Sentences：

The sun melted the snow.
As the snows melt, the flood waters rise.
His heart melted when he saw the little girl crying.