beam是什么意思_beam怎么读_中英文释义(含例句用法)

experience a feeling of well-being or happiness, as from good health or an intense emotion;"She was beaming with joy"
"Her face radiated with happiness"

中英词源

beam 柱子，笑容满面

词源同be, 生长，存在，此处指长成柱子。笑容来自柱子的比喻义，笑容如明亮的光线束。

beam: beam: [OE] In Old English times the word bēam (like modern German baum) meant ‘tree’ – a signification preserved in tree-names such as hornbeam and whitebeam. But already before the year 1000 the extended meanings we are familiar with today – ‘piece of timber’ and ‘ray of light’ – had started to develop. Related forms in other Germanic languages (which include, as well as German baum, Dutch boom, from which English gets boom ‘spar’ [16]) suggest a West Germanic ancestor *bauma, but beyond that all is obscure.
=> boom
beam (n.): Old English beam originally "living tree," but by late 10c. also "rafter, post, ship"s timber," from Proto-Germanic *baumaz (cognates: Old Norse baðmr, Old Frisian bam "tree, gallows, beam," Middle Dutch boom, Old High German boum, German Baum "tree," Gothic bagms), perhaps from PIE verb root *bheue- "to grow" (see be). The shift from *-au- to -ea- is regular in Old English.

Meaning "ray of light" developed in Old English, probably because it was used by Bede to render Latin columna lucis, the Biblical "pillar of fire." Nautical sense of "one of the horizontal transverse timbers holding a ship together" is from early 13c., hence "greatest breadth of a ship," and slang broad in the beam "wide-hipped" (of persons). To be on the beam (1941) was originally an aviator"s term for "to follow the course indicated by a radio beam."
beam (v.): "emit rays of light," early 15c., from beam (n.) in the "ray of light" sense. Sense of "to smile radiantly" is from 1804; that of "to direct radio transmissions" is from 1927. Related: Beamed; beaming.

词态变化

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

权威造句

1. The lighthouse beam was quite distinct in the gathering dusk.: 灯塔的光束在渐浓的暮色中清晰可见。

2. He directed the tiny beam of light at the roof.: 他把那一小束光对准了屋顶。

3. She froze when the beam of the flashlight struck her.: 当手电筒的光照到她身上时她僵住了。

4. Fix the beam with the brackets and screws.: 把横梁用托架和螺丝固定。

5. Everything she says is a little off beam.: 她的话全都不大靠谱。

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近反义词

brace

gleam

ray

width

相似短语

on the beam adv.航向正确,<口>正好,恰好

beam on v. 微笑

beam of light n. 光束

advance beam 超前梁

chopped beam 切割束，间断束，间歇射束

collimated beam 平行束

binding beam 联结梁，联梁

blue beam 蓝色信号射束

buffer beam 缓冲杆

axle beam 前轴梁

单词分析

这些动词均含“笑”之意。
laugh最常用词，指因喜悦、愉快或轻视而出声的笑或大笑。
smile指面露微笑，侧重于无声。
giggle指发出咯咯的笑声，较多地用于女人或孩子。
grin指露齿而笑。
beam书面用词，指人因心情舒畅而发出的笑，即喜形于色地笑。
sneer指冷笑、嘲笑。

记忆方法

【记】音：壁木，墙壁上的木头

beam是什么意思，beam怎么读

beam基本信息

英英释义