英语词源
- X-ray (n.)
- 1896, X-rays, translation of German X-strahlen, from X, algebraic symbol for an unknown quantity, + Strahl (plural Strahlen) "beam, ray." Coined 1895 by German scientist Wilhelm Conrad Röntgen (1845-1923), who discovered them, to suggest that the exact nature of the rays was unknown. As a verb by 1899. Meaning "image made using X-rays" is from 1934, earlier in this sense was X-radiograph (1899).
权威例句
- 1. I had to go back for my checkup; they'd lost my X-rays.
- 我得回去再做一次体检。他们把我的X光片弄丢了。
- 2. X-rays have confirmed that he has not broken any bones.
- X光片证实他没有骨折。
- 3. They took my pulse, took my blood pressure, and X-rayed my jaw.
- 他们给我量了脉搏、血压，还给我的下颌拍了X光片。
- 4. For a decade "X" was the pre-eminent punk band in Los Angeles.
- 10年来，“X”乐队一直都是洛杉矶最杰出的朋克乐队。
- 5. A neutron star has a gravitational field strong enough to generate X-rays.
- 中子星上存在强大的重力场，足以产生X射线。
广而告之
1一秒钟记单词小学英语单词记背神器英语一二三四五六年级人教版英语词汇汇总表单词记背神器 单词记忆书单词词汇速记强化训练
【推荐理由】赠运费险，热门商品
【现价】27.9
【下单链接】38￥ CZ3457 5OArdvEMFvn￥