(构词成分)见 “南无” [nā mó]；

[例句] 无迹象表明向客户售出了不适用的保险。 There is no suggestion that clients have been sold inappropriate policies.

[例句] 他面无表情地站在那里，听法官宣布判决。 He stood emotionless as he heard the judge pass sentence.

of no avail，to no avail，invalid，null and void，be of no effect ；

[例句] 如果可的松无效，我恐怕只能动手术了。 If the cortisone doesn't take, I may have to have surgery.

[例句] 令人震惊的是，这种既无效又危险的手术直到20世纪30年代才被废止。 Shockingly, this useless and dangerous surgery did not end until the 1930s.

infinite，limitless，boundless，immeasurable，ad infinitum ；

[例句] 大自然最让人惊叹的是它的无限多样性。 The most amazing thing about nature is its infinite variety.

[例句] 整个宇宙在无限的空间中永生。 The whole universe exists eternally in that one infinite being.

infinite，endless，boundless，inexhaustible，infinitude ；

[例句] “这将会祸患无穷，”他说道。 "The potential for disaster is enormous," he says.

[例句] 言有尽而意无穷. There's an end to the words, but not to their message.

invisible，intangible，imperceptibly，virtually，immateriality ；

[例句] 除股价上升之外还有无形利益。 There are intangible benefits beyond a rise in the share price.

[例句] 无形贸易盈余比报道所称的少2亿英镑。 The invisible trade surplus was £200 million lower than reported.

useless，of no use，futility，inutility，without avail ；

[例句] 你也许会认为自己无用、不称职、应该受到指责。 You may see yourself as useless, incompetent and blameworthy.

[例句] 尽量避免无用的重复劳动。 Try to avoid wasteful duplication of effort.

[化] inorganic，abio- ；

[例句] 即使不是全部亦是大多数真菌可省去无机氮源. Most, if not all fungi can dispense with inorganic sources.

[例句] 无机和有机表面组成土壤吸附复合体. Both inorganic and organic surfaces constitute the soil adsorption complex.

noiseless，silent，aphonia，silence ；

[例句] 嘉宝拍过24部电影，先是无声的，后是有声的。 Garbo made two dozen films, first silent pictures then talkies.

[例句] 乔的嘴唇无声地动了动。 Joe's lips moved soundlessly.

unmanned，uninhabited，depopulated，nobody，self-service ；

[例句] 房间很安静，无人主动提供更多的信息。 The room was quiet; no one volunteered any further information.

[例句] 刚出首都，总统无人护卫的汽车就遭到了伏击。 The President's unescorted vehicle was ambushed just outside the capital.

[医] asepsis，sterility，germ-free，sterile ；

[例句] 尿液是无菌的。 Urine is sterile.

[例句] 这个盖子严实地盖在奶瓶上,保持奶嘴无菌. This top fits over the bottle and keeps the teat sterile.

achromatic colour，colourless，achromaticity，achromatism ；

[例句] 像水一样无色的液体 a colourless liquid like water

[例句] 这是有强烈味道的无色液体. It is a colourless liquid with a burning taste.

amorphism，nonfixiform，amorphous ；

[例句] 含淀粉的细胞可能也含有无定形的蛋白质即谷蛋白--俗称面筋. The starch - containing cells may also contain amorphous protein known as gluten.

[例句] 无定形和结晶聚合物两者都能发生屈服并能冷拉伸. Both amorphous and crystalline polymers can yield and be cold - drawn.

radio，wireless ；

[例句] 他们通过无线电证实她在营救幸存者。 They confirmed by wireless that she was picking up survivors.

[例句] 船长发无线电说船着火了。 The captain radioed that the ship was on fire.

free，gratis，gratuitous ；

[例句] 我为你所做的一切都是免费的，无偿的，你明白吗？ What I did for you was free, gratis, you understand?

[例句] 他将收藏品无偿捐献出来。 He was giving his collection away for nothing.

[生] asexual，[植] neuter，agamo-，asexuality ；

[例句] 许多真菌可以无性繁殖。 Many fungi can reproduce asexually.

[例句] 这些具有内在的和明显的遗传性,并可以无性繁殖. These are inherent and apparently permanent and can be propagated vegetatively.

sleeveless ；

[例句] 她身穿一袭无袖真丝连衣裙。 She wore a sleeveless silk dress.

[例句] 现在是穿无袖连衣裙的时候了. This is the season for sleeveless dresses.

undistorted，distortionless ；

[例句] BI3002嵌入了最新的无失真数字放大技术. The BI 3002 is embedded with the newest generation of Lossless Digital Amplification LDA Technology.

[例句] 该算法提取出的水印无失真,可以改善水印系统不可感知性和不可统计性. The genetic algorithm can keep good perceptual transparency, and don � � t make distortion of extracted watermark.

[植] fig，turkey fig，ficus carica ；

[例句] 无花果有雄花和雌花。 Figs have male and female flowers.

[例句] 试着吃些用水泡过的西梅干、无花果干或杏干。 Try eating reconstituted dried prunes, figs or apricots.

（不讲道理） rascally，scoundrelly，blackguardly，blackguard，rascal；

[例句] 被这个无赖指责让人尤其气愤。 It was especially galling to be criticised by this scoundrel.

[例句] 无赖！骗子！ The cad! The bounder!

harmless，do no harm to，innocuous，innocuity ；

[例句] 在所有简单无害的娱乐项目背后都隐藏着危险，特别是对儿童而言。 Under all the innocent fun, there are hidden dangers, especially for children.

[例句] 该行业一直在努力开发一些可以替代这些气体的无害物质。 Industry has been working at developing harmless substitutes for these gases.