New words：

perky ['pə:ki] adj. 活泼的；高兴的；快活的；精力充沛的

Sample Sentences：

He wasn't quite as perky as normal.
The sky is blue and everyone looks perky.
He's still in hospital, but he seems quite perky.

New words：

labour ['leibər] n. 劳动；劳动力；工人

Sample Sentences：

It takes a lot of labour to build a railway.
The price will include the labour and materials.
The company wants to keep down labour costs.
Americans and Canadians celebrate Labour Day in September.

New words：

contest ['kɔntest,kən'test] n. 比赛；竞赛；竞争

contest 和 competition 区别：

contest多指一群参赛者“各自”带作品参赛或进行表演，多指在音乐、书法、演讲等方面所进行的比赛或竞争。其结果，由评判委员会裁决。

competition多指体育运动中的各项比赛、角逐，也指知识、技巧等方面的竞赛。

Sample Sentences：

This football match is an unequal contest.
Tom carried off the first prize in the contest.
She won a gold medal for her fine performance in the contest.

New words：

apply [ə'plai] v. 应用；使用；申请；涂；敷

Sample Sentences：

I want to apply for the job.
He has applied to join the army.
She applied the plaster on his shoulder.
The new technology was applied to farming.
We applied our minds to finding a solution to our problem.

New words：

shampoo [ʃæm'pu:]
n.洗头水；洗发液；香波；洗涤剂
vt.用洗发剂洗(头发);用洗涤剂洗(地毯等)

Sample Sentences：

She shampooed her hair.
How often do you shampoo your hair?

Wet your hair before applying the shampoo.
How much do you charge of a shampoo and set?

apply [ə'plai] v. 应用；使用；涂；敷