beam

beam
noun

a long, sturdy piece of squared timber or metal spanning an opening or part of a building, typically to support the roof or floor above
梁，桁；横梁
■a narrow, raised horizontal piece of squared timber on which a gymnast balances while performing exercises
平衡木
■a horizontal piece of squared timber or metal supporting the deck and joining the sides of a ship
（支撑船甲板的）横梁
■(Nautical)the direction of an object visible from the port or starboard side of a ship when it is perpendicular to the centre line of the vessel
(航海)（与船的龙骨垂直的）横向
there was land in sight on the port beam.
左舷正横方向可以看到陆地。
■a ship's breadth at its widest point
船宽，船幅
a cutter with a beam of 16 feet.
船幅16英尺的独桅纵帆船。
■[insing.](informal)the width of a person's hips
(非正式)臀围
notice how broad in the beam she's getting?.
注意到她的臀围有多宽吗？。
■the main stem of a stag's antler
（牡鹿角的）主干
■the crossbar of a balance
（天平的）杠杆
■an oscillating shaft which transmits the vertical piston movement of a beam engine to the crank or pump
（引擎的）传动杆
■the shank of an anchor
锚柄，锚干
■(historical)the main timber of a horse-drawn plough
(史)（马拉犁的）犁柄
a ray or shaft of light
光线；光柱
a beam of light flashed in front of her.
一柱光在她面前闪过。
the torch beam dimmed perceptibly.
火把的光线明显暗下来了。
■a directional flow of particles or radiation
（粒子或辐射）束
beams of electrons.
电子束。
■a series of radio or radar signals emitted as a navigational guide for ships or aircraft
（导航用无线电或雷达的）射束，波束
[insing.]a radiant or good-natured look or smile
笑容；喜色
a beam of satisfaction.
满意的笑容。

verb

[with obj.andadverbial of direction]transmit (a radio signal or broadcast) in a specified direction[noobj.]
定向发出（无线电信号）；（有针对性地）广播
beaming a distress signal into space.
向太空发射求救信号。
the TV company begins beaming into homes in the new year.
新的一年中，电视公司开始向家家户户发送节目信号。
■[with obj.](beam someone up/down)(in science fiction) transport someone instantaneously to another place, especially to or from a spaceship
（科幻小说用语）把某人瞬间转移（至或转移出宇宙飞船）
[noobj., with adverbial of direction](of a light or light source) shine brightly
（光，光源）照耀
the sun's rays beamed down.
阳光照射下来。
[noobj.]smile radiantly[as adj. beaming]
面露喜色；满脸堆笑
she beamed with pleasure.
她欣喜得满面笑容。
a beaming smile.
灿烂的笑容。
■[with obj.]express (an emotion) with a radiant smile
微笑着流露出（感情）
the instructress beamed her approval.
女教官微笑着表示赞同。

常用词组
a beam in one's eye

a fault that is greater in oneself than in the person one is finding fault with
（与他人相比）自身特别重大的缺点

off (或 way off) beam

(informal)on the wrong track; mistaken
(非正式)不对，错

on her (或 its) beam-ends

(of a ship) heeled over on its side; almost capsized
（船）倾侧的；几乎翻船的

on one's beam-ends

near the end of one's resources; desperate
黔驴技穷的；绝望的

put the low beams on

(N. Amer.)dip the headlights of one's car
(北美)把车前灯的远光调为近光

语源

Old English bēam 'tree, beam', of West Germanic origin; related to Dutch boom and German Baum

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