好词典

beam

UK //biːm//US //biːm//

词源

源自古英语 'bēam',意为'树'或'梁',与德语 'Baum'(树)同源。

noun

❶ 指长而坚固的木材或金属横梁,用于支撑建筑物或桥梁的结构。

“The wooden beams in the old house were still strong.”

(老房子里的木梁依然很坚固。)

“They used steel beams to construct the bridge.”

(他们用钢梁建造这座桥。)

❶ 指光线或辐射的集中束,如阳光、激光或无线电波。

“The laser beam was used to cut through metal.”

(激光束被用来切割金属。)

“A beam of hope shone through the difficult times.”

(一束希望之光穿透了困难时期。)

同义词:ray, bar, shaft, girder, support

verb

❶ 指发出光线或信号,通常用于描述光源或无线电波的传播。

“The lighthouse beams its light across the sea.”

(灯塔的光束照射在海面上。)

“Her face beamed with happiness.”

(她的脸上洋溢着幸福的笑容。)

同义词:radiate, shine, glow, transmit, smile

常见短语

on the beam — 表示某事物是正确的、准确的或符合预期的,常用于口语中。

“Your answer is right on the beam.”

(你的回答完全正确。)

off the beam — 表示某事物是错误的、偏离目标的或不符合预期的。

“His theory is completely off the beam.”

(他的理论完全偏离了方向。)