603. merchant n. 商人

He traded as a tobacco merchant.

他是做烟草生意的商人。

604. mere a. 仅仅的，只不过的；纯粹的

The space tourism industry is officially open for business, and tickets are going for a mere $20 million for a one-week stay in space. (2006年12月24日大学英语四级(CET-4)真题试卷(A卷))

605. nuisance n. 令人讨厌的东西（或人）

It's a nuisance to have so many commercials.

这么多商业广告实在太令人讨厌了。

606. numerous a. 众多的，许多的

there are numerous languages in existence (2008年12月大学英语四级考试真题)

607. parade n. 游行 v. 列队行进

The people amassed for the parade.

人们集合起来准备游行。

The captured criminals were paraded through the main streets.

被抓获的犯人列队游街示众。

608. pants [pl.] n. 长裤；内裤

These are his pants.

这是他的裤子。

609. partial a. 部分的

Advanced toilet still should have partial setting light source.

高级的卫生间还应该有部分背景光源。

610. passport n. 护照

Please show me your passport.

请出示一下你的护照。

611. prescribe vt. 开药，吩咐采用...疗法

The doctor prescribed his patient who was down with fever.

医生给发烧病人开了药方。

612. primitive a. 原始的，早期的

Primitive people live in holes.

原始人过穴居生活。

613. ridge n. 脊，山脊，埂

A shot cracked across the ridge.

一颗炸弹飞过山脊爆炸了。

614. ridiculous a. 可笑的，荒漠的

This deduction is ridiculous.

这种演绎是荒谬的。

615. rigid a. 严格的；僵硬的

Rigid convention prescribes that such meetings open with prayer .

严格的习俗规定这样的开会必以祈祷开始。

616. withstand vt. 经受，承受

As a politician, he is able to withstand public criticism.

作为一名政治家，他经得住公众批评。