a line of light, electromagnetic waves or particles 光线；（电波的）波束；（粒子的）束 narrow beams of light/sunlight 一丝丝的光线／阳光 the beam of a torch/flashlight 手电筒光柱 a laser/electron beam 激光束；电子束 - (British English)
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。
Extra ExamplesHe played the beam of his torch over the wall of the cave. 他晃动着手电筒用光束照射岩洞壁。 The beam from the lighthouse swept over the sea. 灯塔的光束扫过海面。 He was suddenly caught in the full beam of a searchlight. 他突然被探照灯光捕捉到。 They focus a high-powered X-ray beam on the affected area. 他们用高强度的 X 射线光束照射感染部位。
Oxford Collocations Dictionaryadjective- light
- bright
- intense
- …
- emit
- fire
- shoot
- …
- shine
- illuminate something
- light something up
- …
- beam from
- beam of
a long piece of wood, metal, etc. used to support weight, especially as part of the roof in a building 梁 Extra ExamplesTopics Buildingsc1It was a charming cottage with original beams and a thatched roof. 这是一个迷人的小屋，有原始的横梁和茅草屋顶。 A concrete beam was put in to replace the wall we removed. 一根混凝土梁被装上来代替我们拆除的墙。 The missiles are bolted to reinforced beams in the floor. 导弹用螺栓固定在地板的加固梁上。
Oxford Collocations Dictionaryadjective- timber
- wooden
- oak
- …
- support something
- (especially British English) (North American English usually balance beam)
a wooden bar that is used in the sport of gymnastics for people to move and balance on 平衡木 The gymnast performed a somersault on the beam. 体操运动员在横梁上翻了一个筋斗。
a wide and happy smile 笑容；眉开眼笑 a beam of satisfaction 满意的笑容
Word OriginOld English bēam ‘tree, beam’, of West Germanic origin; related to Dutch boom and German Baum.