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VERB
眉开眼笑；笑容满面
If you say that someone is beaming, you mean that they have a big smile on their face because they are happy, pleased, or proud about something.
例句
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。
'Welcome back,' she beamed.
“欢迎回来，”她满面笑容地说。
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N-COUNT
（能量、放射线或粒子的）束，柱
A beam is a line of energy, radiation, or particles sent in a particular direction.
例句
...high-energy laser beams.
高能激光束
...a beam of neutrons.
一束中子
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V-ERG
（通过电子设备）发送，发射
If something beams radio signals or television pictures or they are beamed somewhere, they are sent there by means of electronic equipment.
例句
The interview was beamed live across America...
这次访谈向全美国现场直播。
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。
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N-COUNT
（光）束；（光）线
A beam of light is a line of light that shines from an object such as a lamp.
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VERB
照耀；照射
If something such as the sun or a lamp beams down, it sends light to a place and shines on it.
例句
A sharp white spotlight beamed down on a small stage...
聚光灯的强烈白光照在小舞台上。
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。
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N-COUNT
梁；横梁
A beam is a long thick bar of wood, metal, or concrete, especially one used to support the roof of a building.
例句
The ceilings are supported by oak beams.
房顶用橡木横梁支撑。
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N-SING
（体操中的）平衡木
In gymnastics, the beam is a piece of equipment that consists of a narrow wooden bar on which gymnasts balance and perform movements.