1. commercial [kə'mɜːʃ(ə)l] adj. 商业的，商务的；盈利的，商业化的  n. 商业广告

This district is the commercial heart of the city.

这个区域是城市的商业中心。

The film was a huge commercial success.

这部电影在商业上非常成功。

There's a feeling among a lot of people that music has become too commercial.

许多人都感到音乐已变得太商业化了。

commercial channel

商业频道，购物频道  

The TV show was interrupted by too many commercials.

这节目中间广告太多。

commerce ['kɒmɜːs] n. 商业，商务，贸易

They have made their fortunes from industry and commerce.

他们从工商业中发了财。

2. hijack ['haɪdʒæk] vt. 劫持（交通工具，尤指飞机）；胁迫，强制  n. 劫持

The terrorists hijacked the plane.

恐怖分子劫持了飞机。

The airliner was hijacked by a group of terrorists.

该航班被一帮恐怖分子劫持。

She was hijacked into the car.

她被强行推进了汽车。

Every munite during the hijack seemed like a week.

被劫持的过程中，每一分钟都如同一周那么漫长。

3. verbal ['vɜːb(ə)l] adj. 口头的；文字的，言辞的；动词的

a verbal agreement/warning

口头协议/警告

verbal instructions

口头指示        

verbal abuse

言语辱骂

The job applicant must have good verbal skills.

应聘这份工作的人必须具有良好的语言表达技能。

a verb noun 动名词

4. current ['kʌr(ə)nt] adj. 现时的，当前的；通用的，流行的  n. 水/气/电流；思潮，潮流

He must sell the house for the current market value.

他必须以目前的市价出售这座房子。

the current rate of inflation

当前的通货膨胀率

words that are no longer current

已不再通用的词        

He swam to the shore against a strong current.

他逆着激流游向岸边。

an electrical current

一股电流

political currents

政治思潮

Each party represents a distinct current of thought.

每个党派都代表一种独特的思想倾向。

currency ['kʌr(ə)nsɪ] n. 货币；流行，传播

There are moves towards a single currency in Europe.

欧洲有向单一货币发展的趋势。

foreign currency 外币

to gain currency 流行传播，广泛接受

That story gained greater currency as time went on.

随着时间的推移，这个故事传播开来。

5. epidemic [epɪ'demɪk] n. 传染病，流行病；adj. 传染性的；盛行的

An epidemic broke out.

一种传染病突然开始流行。

the outbreak of a flu epidemic

流感的爆发

Violent crime is reaching epidemic proportions in some cities.

有些城市的暴力罪行几近泛滥。