大学英语单词-独山在线

大学英语单词表

本单词表包含15328条英汉词条，帮助你背诵记忆。

radiant [ 'reidjənt ] a. 发光的,明亮的,辐射的
e.g. 1. Everything looked radiant in the morning sun.
在朝阳之下，万物焕然一新。
2. The sun is a radiant body.
太阳是一个发光体。

radiate [ 'reidieit ] v. 放射,散发,辐射
e.g. 1. Five roads radiate from this roundabout.
有五条道路以这个环状交叉路为中心向各方伸展开。
2. Eight roads radiate from the square.
八条大道从广场呈辐射形伸展出去。

radiation [ ˌreidi'eiʃən ] n. 辐射
e.g. 1. The news of the radiation leak caused widespread public alarm.
辐射泄露的消息引起了公众的普遍恐慌。
2. The most terrifying aspect of nuclear bombing is radiation.
核弹轰炸最可怕的一面是辐射。

radiator [ 'reidieitə ] n. 暖气片,散热器
e.g. 1. This car has a fan-cooled radiator.
这部汽车有一个由风扇散热的冷却器。
2. The dog nestled up against the warm radiator.
狗倚著暖烘烘的散热器.

radical [ 'rædikəl ] n. 激进份子,原子团,激进派
a. 急进的,根本的,激进的,基本的,彻底的
e.g. 1. The talks are aimed at radical reductions in the level of weapons.
那些会谈都以大幅度裁减军备为目标。
2. They called for a radical reform of our tax system.
他们要求对税收制度进行根本改革。

radically [ 'rædikəli ] ad. 根本地,完全地
e.g. 1. All our previous ideas are now in the melting-pot; our jobs are bound to change radically.
我们从前的一切观念都正在改变, 我们的工作肯定要有很大变动.
2. There is only a formal resemblance between the two systems; they are in fact radically different.
这两种体系只是在表面上有某种相似之处, 其实根本不同.

radio [ 'reidiəu ] n. 收音机
v. 用无线电通讯
e.g. 1. I heard the news on the radio.
我从广播中听到了这件事。
2. He asked me to turn on the radio for him.
他让我替他打开收音机。

radio frequency n. 无线电频率
e.g.

radioactive [ 'reidiəu'æktiv ] a. 放射性的
e.g. 1. The radioactive waste should be buried deeply under the ground in sealed box.
这些放射性废物应该放在密封的箱子里深埋在地下。
2. The radioactive material is stored in a special radiation-proof container.
放射性材料贮存在防辐射的特殊容器内.

radioactivity [ 'reidiəuæk'tiviti ] n. 放射性
e.g. 1. Relating to or caused by radioactivity.
放射产生的关于放射性的或由放射性引起的
2. Russian-born American nuclear physicist known for his work on radioactivity and genetic information as well as his books popularizing theories of physics.
伽莫夫，乔治1904－1968俄国裔的美国核物理学家，因在射线遗传信息方面的研究和有关普及物理理论的书籍而闻名于世

radiochemistry [ 'reidiəu'kemistri ] n. 放射化学
e.g.

radioisotope [ 'reidiəu'aisətəup ] n. 放射性同位素
e.g.

radiotherapy [ 'reidiəu'θerəpi ] n. 放射线疗法
e.g. 1. A radioactive compound used in radiotherapy or diagnosis.
放射性药剂一种用于放射性治疗或诊断的放射性化合物

radish [ 'rædiʃ ] n. 萝卜
e.g. 1. I bought a large bunch of radishes.
我买了一大捆萝卜。

radium [ 'reidjəm ] n. 镭
e.g. 1. Radium and uranium are radioactive elements.
镭和铀是放射性元素.
2. Tell me when radium was found.
告诉我镭是什么时候被发现的。

radius [ 'reidjəs ] n. 半径
e.g. 1. The police searched all the woods within a six-mile radius.
警察搜索了在周围六英里以内的树林各处。
2. We can compute the circular area with radius.
我们能用半径计算出圆的面积。

radix [ 'reidiks ] 基数,根
e.g.

radon [ 'reidɔn ] n. 氡
e.g. 1. A radioactive, inert, gaseous isotope of radon, with a half-life of3.92 seconds.
锕射气氡的一种放射性的，惰性的和气态的同位素，其半衰期为3。92秒
2. Any of several radioactive gases that are isotopes of radon and are products of radioactive decay.
射气几种氡的同位素的放射性气体，是放射性物质衰变的产物

raffish [ 'ræfiʃ ] a. 名誉不好的,无赖的,卑鄙的
e.g. 1. He was drinking cheap champagne with a raffish air.
他喝著廉价的香槟酒, 样子十分放荡.

raffle [ 'ræfl ] n. 废物(绳索什物)
vt 抽彩
e.g. 1. The draw for the raffle takes place on Saturday.
抽彩仪式星期六举行.
2. My luck's in I won a new car in a raffle.
我的运气来了－－在有奖抽彩中我得了一辆新汽车。

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