[医] barrenness，infertilitas，sterility disease，infertilitas feminis ；

[例句] 力比多的缺失与不育症以及阳痿的联系也并非绝对. Absence of libido may or may not correlate with infertility or impotence.

[例句] 研究者发现男性的体重指数是不育症的独立危险因素. Researchers found that men's BMI was an independent risk factor for infertility.

[医] barrenness，infertilitas feminis，infertility ；

[例句] 在2000年度批准的新药中有塞洛诺的Ovidrel,用于治疗女性不孕症. Among the new drugs approved in 2000 was Serono's Ovidrel for treatment of infertility in women.

[例句] 戒咽可改进自然生育力和不孕症治疗的成功率. Smoking cessation may improve natural fertility and success rates with infertility treatment.

distrust，not believe in，have no faith in，have no confidence in，mistrust ；

[例句] 电子商务 中这类不信任的财务成本在2006年大约20亿美元. The financial cost of this mistrust in e - commerce was approximately US $ 2 bn in 2006.

[法] undue，unwarrantable，unmerited ；

[例句] 他因使用消毒不当的注射针头而感染了艾滋病。 He had become infected with Aids from an improperly sterilised needle.

[例句] 有些药店在配发顺势疗法的药物时给出了错误或不当的建议。 Some shops gave wrong or inadequate advice when dispensing homeopathic medicines.

[经] fail to observe，inobservance，nonobservance，without regard to ；

[例句] 不遵守消防规章的行为要受到处罚。 There are penalties for non-compliance with the fire regulations.

[例句] 不遵守这些条件将导致合同终止。 Failure to comply with these conditions will result in termination of the contract.

[经] non-acceptance ；

[例句] 为什么不接受新的培训，找一份让你更快乐的工作？ Why not retrain for a job which will make you happier?

[例句] 这种否认仅限于不接受对他所说话语的阐释。 The denial was limited to rejecting the construction put on his remarks.

displeasure，unpleasantness，unpleasure，disamenity ；

[例句] 年少时我经历过很多不愉快。 There was a lot of unhappiness in my adolescence.

[例句] 他们对不愉快的想法不予理会，其结果仅仅是压制了这些想法。 By pushing aside unpleasant thoughts they merely repress these thoughts.

inhomogeneous，nonuniform，heterogeneous；

[例句] 她能听到他不均匀的呼吸声，似乎他是跑着过来的。 She could hear his ragged breathing, as if he had been running.

[例句] 他能听到她的呼吸不均匀。 He could hear that her breathing was uneven.

[医]unfruitful ；

[例句] 家具又硬又不舒服，太不结实而且太小巧。 The furniture was stiff, uncomfortable, too delicate, and too neat.

[例句] 这书橱很不结实,装不了这么多书. This bookcase is too unstable to hold so many books.

invariant，invariable ；

[例句] 基于这些旋转不变量给出了一种形状相似性度量. A shape similarity measure is defined on the extracted rotation invariants.

[例句] 摘要本文研究了关于投影体的中心仿射不变量比的问题. This paper concerns the ratio of centro - affine invarients for a projection body.

[医]parum ；

[例句] 他话不多，很有礼貌，为人谦和。 He's a man of few words, very polite and unassuming.

[例句] 你花不多的钱就可以吃一顿很特别的饭。 You get an interesting meal for a reasonable price.

[法] non-participation，nonparticipator ；

[例句] 难怪他决定不参加辩论呢。 Small wonder that he decided to take no part in the debate.

[例句] 你若不参加他们的婚礼，他们会生气的。 They'll be offended if you don't go to their wedding.

discord ；

[例句] 小小的不谐和把事情弄得更糟. Minor disagreements made matters worse.

bad；

[例句] 别抱怨不好的事，要对好的事心存感恩。 Instead of complaining about what's wrong, be grateful for what's right.

[例句] 我们从小就被教导借钱是不好的行为。 We'd been brought up to think that borrowing money was bad.

discontent，unsatisfy；

[例句] 如果你对修理效果不满意，可以再找他们投诉。 If you are not happy about a repair, go back and complain.

[例句] 他一向不满意儿子的政治倾向。 He has been unhappy with his son's political leanings.

not in accordance with filial，disobedience，impiety ；

[例句] 他对父母不孝,令他的朋友们大为吃惊. His friends were shocked by his ingratitude to his parents.

[例句] 他最后的行为就是这一种不孝. His last act must be a deed of impiety.

indelicacy，inelegant，inelegance，inelegancy ；

[例句] 他一屁股坐在她对面的椅子上，姿势非常不雅。 He dropped gracelessly into a chair opposite her.

[例句] 她那条裙子实在不雅. That skirt of hers is positively indecent.

[医] aniso-，odds ；

[例句] 财富的分配不均 an unequal distribution of wealth

[例句] 这两份多少不均,再匀一匀吧. These two shares are not equal. Please even them up.

infinitive；

[例句] 分裂不定式的用法现在已被广泛接受. The use of the split infinitive is now generally acceptable.

[例句] 情态动词通常用不带to的不定式. Modal verbs generally take the bare infinitive.

don't mention it，not at all ；

[例句] 你不但不谢他,还埋怨他,真不知好歹. You are really an ungrateful wretch to complain instead of thanking him.

[例句] 他甚至连 谢 都不谢一声. He never so much as said " Thanks ".