CNN 2011-01-02

Three, two, one, Happy New Year!

A rehearsal¹ in Time Square of the ball drop to ring in the New Year as thousands crowd around it to watch. Behind the scenes, the New York City's Police Department is gearing up for a massive security operation.

This is sort of a nerve center.

New York City Police Commissioner² Ray Kelly says the department updates its plan each year to secure crowds who must be within barricades³ and go through metal detectors⁴. Radiation detectors are also used. And backpacks are banned.

We're concerned about a device that someone might bring in on their person, a vehicle borne device, a vest of some sort, explosives on the body.

1 rehearsal   

n.排练，排演；练习

参考例句：

• I want to play you a recording of the rehearsal.我想给你放一下彩排的录像。
• You can sharpen your skills with rehearsal.排练可以让技巧更加纯熟。

2 commissioner   

n.（政府厅、局、处等部门）专员，长官，委员

参考例句：

• The commissioner has issued a warrant for her arrest.专员发出了对她的逮捕令。
• He was tapped for police commissioner.他被任命为警务处长。

3 barricades   

路障，障碍物( barricade的名词复数 )

参考例句：

• The police stormed the barricades the demonstrators had put up. 警察冲破了示威者筑起的街垒。
• Others died young, in prison or on the barricades. 另一些人年轻时就死在监牢里或街垒旁。

4 detectors   

探测器( detector的名词复数 )

参考例句：

• The report advocated that all buildings be fitted with smoke detectors. 报告主张所有的建筑物都应安装烟火探测器。
• This is heady wine for experimenters using these neutrino detectors. 对于使用中微子探测器的实验工作者，这是令人兴奋的美酒。 来自英汉非文学 - 科技