beam

• 名词，指用于建筑中支撑重量的长而坚固的材料（如木头、金属或混凝土）；也指光线。

A noun referring to a long, sturdy piece of material (such as wood, metal, or concrete) used in construction to support weight, or a ray or shaft of light.

1. Ray of lightA2formal

   A line of light or other radiation, such as from a lamp or the sun.

   光束

   • A beam of sunlight streamed through the window.
   • The lighthouse sent out a powerful beam across the sea.
   • Laser beams are used in many medical procedures.

   同义词gleamglintrayshaftstreakstream

2. Structural supportB1formal

   A long, sturdy piece of wood, metal, or concrete used in construction to support weight.

   梁

   • The wooden beam supports the roof of the old barn.
   • Steel beams are essential for building skyscrapers.
   • The ceiling is held up by massive concrete beams.

   同义词girderjoistlintelrafter

3. Broad smileB1informal

   A wide, happy smile.

   灿烂的笑容

   • She greeted him with a beam of delight.
   • His face broke into a beam when he heard the news.
   • The child gave a beam of pure joy.

   同义词grinsmile

   反义词frownscowl

• 动词，表示发光、散发能量，或指开心地咧嘴笑。

A verb used to indicate the act of emitting light, radiating energy, or smiling broadly.

1. Smile broadlyB1formal

   To smile in a very happy or radiant way.

   眉开眼笑

   • She beamed with joy when she heard the news.
   • The child beamed at his mother after winning the game.
   • He beamed proudly as he accepted the award.

   同义词grinsmile

   反义词frownglowergrimacepoutscowl

2. Transmit or emitB2formal

   To send out light, radio signals, or other energy in a focused direction.

   传送或发射

   • The satellite beams data back to Earth.
   • The lighthouse beamed a bright light across the sea.
   • Radio stations beam their signals to listeners around the world.

   同义词aimbroadcastdirectemitflashradiatesendshinetransmit

   反义词absorb

3. Shine brightlyB2formal

   To emit or reflect light strongly.

   闪耀

   • The sun beamed down on the beach.
   • Her eyes beamed with excitement.
   • The flashlight beamed a narrow path through the dark forest.

   同义词blazeflareflashglaregleamglimmerglitterglowradiateshinesparkle