beam

英 [biːm]

美 [biːm]

n. 光线; (电波的)波束; (粒子的)束; (建筑物的)梁; (体操运动的)平衡木
v. 笑容满面; 眉开眼笑; 发射(电波); 播送; 照射; 射出光(或热)

复数：beams　过去式：beamed　现在分词：beaming　过去分词：beamed　第三人称单数：beams　

高考 CET4 CET6 考研 TOEFL IELTS GRE TEM4 TEM8 计算机

Collins.2 / BNC.3945 / COCA.3741

习惯用语

off beam

不正确；错误
not correct; wrong
Your calculation is way off beam.
你的计算完全错误。

smile/grin/beam from ear to ear

眉开眼笑；笑得合不拢嘴
to be smiling, etc. a lot because you are very pleased about sth

牛津词典

noun

光线；（电波的）波束；（粒子的）束
a line of light, electric waves or particles
1. narrow beams of light/sunlight
  一丝丝的光线 / 阳光
2. the beam of a torch/flashlight
  手电筒 / 闪光灯光柱
3. a laser/electron beam
  激光 / 电子束
4. The car's headlights were on full beam (= shining as brightly as possible and not directed downwards) .
  那辆汽车大开着前灯。
5. a car with its high beams on
  前灯大开着的汽车
（建筑物的）梁
a long piece of wood, metal, etc. used to support weight, especially as part of the roof in a building
1. The cottage had exposed oak beams.
  小屋的橡木梁裸露着。
（体操运动的）平衡木
a wooden bar that is used in the sport of gymnastics for people to move and balance on
笑容；眉开眼笑
a wide and happy smile
1. a beam of satisfaction
  满意的笑容

verb

笑容满面；眉开眼笑
to have a big happy smile on your face
1. He beamed at the journalists.
  他笑容满面地面对记者。
2. She was positively beaming with pleasure.
  她的确喜不自胜。
3. The barman beamed a warm smile at her.
  酒吧侍者对她热情地微笑。
4. ‘I'd love to come,’ she beamed (= said with a large smile) .
  “我很乐意来。”她满面笑容地说。
发射（电波）；播送
to send radio or television signals over long distances using electronic equipment
1. Live pictures of the ceremony were beamed around the world.
  典礼经实况转播传到世界各地。
照射；射出光（或热）
to produce a stream of light and/or heat
1. The morning sun beamed down on us.
  早上的太阳照射着我们。
2. Light beamed through a hole in the curtain.
  光线透过窗帘上的一个孔照射进来。

柯林斯词典

VERB 眉开眼笑；笑容满面
If you say that someoneis beaming, you mean that they have a big smile on their face because they are happy, pleased, or proud about something.
1. Frances beamed at her friend with undisguised admiration...
  弗朗西丝开心地对自己的朋友笑着，毫不掩饰她的羡慕之情。
2. 'Welcome back,' she beamed.
  “欢迎回来，”她满面笑容地说。
3. ...the beaming face of a 41-year-old man on the brink of achieving his dreams.
  即将实现自己梦想的41岁男人的笑脸
N-COUNT （能量、放射线或粒子的）束，柱
Abeamis a line of energy, radiation, or particles sent in a particular direction.
1. ...high-energy laser beams.
  高能激光束
2. ...a beam of neutrons.
  一束中子
V-ERG （通过电子设备）发送，发射
If somethingbeamsradio signals or television pictures or theyare beamedsomewhere, they are sent there by means of electronic equipment.
1. The interview was beamed live across America...
  这次访谈向全美国现场直播。
2. The live satellite broadcast was beamed into homes across America.
  此次卫星直播被发送到美国的千家万户。
3. ...a ship which is due to begin beaming radio broadcasts to South East Asia.
  预定将对东南亚进行无线电广播的船只
（光）束；（光）线
Abeam oflight is a line of light that shines from an object such as a lamp.
VERB 照耀；照射
If something such as the sun or a lampbeamsdown, it sends light to a place and shines on it.
1. A sharp white spotlight beamed down on a small stage...
  聚光灯的强烈白光照在小舞台上。
2. All you see of the outside world is the sunlight beaming through the cracks in the roof.
  而外面的世界，你所能看见的就只是透过房顶缝隙射进来的阳光。
N-COUNT 梁；横梁
Abeamis a long thick bar of wood, metal, or concrete, especially one used to support the roof of a building.
1. The ceilings are supported by oak beams.
  房顶用橡木横梁支撑。
（体操中的）平衡木
In gymnastics,the beamis a piece of equipment that consists of a narrow wooden bar on which gymnasts balance and perform movements.
See also:off-beam

英英释义

noun

a gymnastic apparatus used by women gymnasts
Synonym:balance beam
long thick piece of wood or metal or concrete, etc., used in construction
the broad side of a ship
1. they sighted land on the port beam
(nautical) breadth amidships
a signal transmitted along a narrow path
Synonym:radio beam
a column of light (as from a beacon)
Synonym:beam of lightlight beamrayray of lightshaftshaft of lightirradiation
a group of nearly parallel lines of electromagnetic radiation
Synonym:rayelectron beam

verb

smile radiantly
broadcast over the airwaves, as in radio or television
1. We cannot air this X-rated song
Synonym:airsendbroadcasttransmit
express with a beaming face or smile
1. he beamed his approval
experience a feeling of well-being or happiness, as from good health or an intense emotion
1. She was beaming with joy
2. Her face radiated with happiness
Synonym:glowradiateshine
have a complexion with a strong bright color, such as red or pink
1. Her face glowed when she came out of the sauna
Synonym:glowradiateshine
emit light
1. The sun shone bright that day
2. The fire beamed on their faces
Synonym:shine

双语例句

The lamp sends out a powerful beam.
这盏灯发放出强光。
The live satellite broadcast was beamed into homes across America.
此次卫星直播被发送到美国的千家万户。
The brace is at too big an angle with the beam.
撑条和横梁之间角度太大。
A sharp white spotlight beamed down on a small stage
聚光灯的强烈白光照在小舞台上。
Suddenly the beam of an electric torch was flashed into his face.
忽然一道手电光射到他脸上。
The gymnast performed on the balance beam with an easy grace.
体操运动员在平衡木上表演得优美自如。
Researchers realised that a tunable laser beam might be useful in surgery.
研究人员意识到，可调谐激光束也许可以用在外科手术中。
She would artfully position herself in a beam of October sunlight in our living room.
她会美妙地把自己安置在我们家客厅里面一道十月阳光之中。
The electron microscope uses a beam of electrons to produce images at high magnifications
电子显微镜利用电子束形成高倍影像。
This can be accomplished by using a beam splitter.
利用一个分束器就能完成上述过程。