小宝贝真紧校园强h_二区免费视频_91免费视_九一精品一区_69热国产视频_在线免费看毛片

单词
beam
英 [bi?m] 美[bim]
基本信息
  • n. 横梁;光线;电波;船宽;[计量] 秤杆
  • vt. 发送;以梁支撑;用…照射;流露
  • vi. 照射;堆满笑容
  • n. (Beam)人名;(阿拉伯)贝亚姆;(英)比姆
CET4TEM4IELTSGRE考研TOEFLCET6中低频词核心词汇

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;

助记提示

【记】音:壁木,墙壁上的木头

中文词源

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。

英文词源

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 baemr, 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.

双语例句

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。

来自柯林斯例句

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

来自柯林斯例句

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。

来自柯林斯例句

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

来自柯林斯例句

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

来自柯林斯例句

主站蜘蛛池模板: 亚洲乱码一区二区三区在线观看 | 日本一二三本免费视频 | 天天射综合网站 | 毛片在线观看视频 | 黄色在线观看国产 | 国内精品久久久久久影院老狼 | 福利社午夜影院 | 男人色| 亚洲精品无码成人片久久 | 日韩欧美一区二区三区视频 | 特级aa一级欧美毛片 | 久久精品国产第一区二区三区 | 亚洲.欧美.在线视频 | 嫩草影院在线观看未满十八 | 日本理论视频 | 真正免费一级毛片在线播放 | 国产成人精品一区二区三区 | 亚洲精品久久激情影院 | 久久精品免费一区二区视 | 亚洲国产第一区二区三区 | 少妇熟女视频一区二区三区 | 久久99这里只有精品 | 9热在线精品视频观看 | 日韩亚洲欧美一区噜噜噜 | 吃奶摸下高潮60分钟免费视频 | 亚洲日本在线观看视频 | 天天爽夜夜爽人人爽一区二区 | 亚洲精品字幕 | 久久久久人妻一区二区三区vr | 国产精品99久久精品 | 瑟瑟久久| 99精彩视频在线观看 | 久久亚洲精品中文字幕二区 | 人妻阿敏被老外玩弄系列 | 久久久久久久99久久久毒国产 | r级无码视频在线观看 | 亚洲综合久 | 午夜激情视频在线播放 | 特级毛片a级毛片免费观看网站 | 亚洲一区二区三区四区五区六区 | 久久综合狠狠综合久久综合88 |