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A light pointer is often useful with a slide projector.是什么意思？

A light pointer is often useful with a slide projector.

光指示器经常与幻灯片放映机一起使用.

相关词汇
light pointer is often useful with slide projector

light

n. 光，发光体，电灯，点火器；adj. 轻的，明亮的，浅色的，少量的；v. 点燃，照亮，用光指引；adv. 轻地，轻装地；
例句
...the light of the sunset's afterglow.
落日的余晖

pointer

--
例句
AIRSPEED INDEX , An adjustable pointer on the airspeed indicator.
空速指标, 在空速表上可以调整的指针.

is

vt.& vi. 是（be的三单形式；n. 存在；
例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

often

adv. 常常，经常，时常，再三；
例句
Genetic abnormalities are more often associated with faults in paternal DNA than in maternal DNA.
相对于母本DNA,基因畸变往往更多地与父本DNA上的缺陷相关。

useful

adj. 有用的，有益的，有帮助的，令人满意的；
例句
A tripod will be useful to align and steady the camera...
三脚架有助于调准和稳定相机。

with

prep. 和，跟，随着，关于，和…一致；
例句
A waiter entered with a tray...
侍者端着托盘进来了。

slide

vi. 滑落，下跌，打滑，[棒球]滑垒；vt. 衰落（成），逐渐降低，使悄悄转动，（使）快捷而悄声地移动；n. 幻灯片，降低，滑梯；
例句
James Watson, Philip Mayo and I gave a slide and video presentation...
詹姆斯·沃森、菲利普·梅奥和我利用幻灯片和视频进行了介绍。

projector

n. 放映机，幻灯机，投影仪，设计者，放映技师；
例句
There is a new projector in my office.
我的办公室里有一架新的幻灯机.
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
Love rules without a sword and bind without a cord.
爱的统治不用刀枪，捆绑不用绳索。
You are wrong about the facts to begin with.
首先你把事实都没弄对.
John caught at Bill's offer to help.
约翰接受比尔提供的帮助。
They owned vast banana plantations in Guatemala and Central America.
他们在危地马拉和中美洲拥有广大的香蕉大种植园.
A boy and a girl are chatting charmingly together.
一个男孩和一个女孩正在娓娓交谈。
Great areas could be quickly planted and harvested collectively.
大片土地可以很快地集体耕种,集体收获.
It's true she gets madly impatient with him, but what mother doesn't?…
她确实对他极其不耐烦，但哪个母亲不是这样呢？
Spot fires glow after the Station Fire burned through August 30,2009 in Acton, California.
现场火光站火灾后,通过2009年8月30日被烧毁的阿尔顿, 加利福尼亚州.
Passenger train driver: Punctually embarks.
客车司机: 准时出发.
The Old Testament was written in Hebrew, with a sprinkling of Aramaic.
旧约是用希伯来文写的, 也有星点亚兰文的笔墨.