Almost all variations in living standards are explained by differences in countries'productivities.几乎全部的生活水平的不同都可以由生产率的不同来解释.Global warming affects productivities of plants, and then, the structure and evolution of ...

fireproof的现在完成时为：fireproofed...

Aim To synthesize new type of octane number improver for gasoline, methoxyisobutyrate.目的合成一种新型汽油辛烷值改进剂─甲氧基异丁酸烷基酯.Cetane improver . Makes the engine run better at higher compression settings.碳氢化合物的改进物. 使引擎在高压缩比时运转较为顺畅.Cyc...

arms procurement采购武器More and more , human food procurement came to have a dominant effect on their evolution.人类获取食物愈来愈显著地影响到人类的进化.local procurement就地采购Russia was cutting procurement of new weapons 'by about 80 per c...

不麻烦， 没什么， 没事儿，非常容易...

reciprocate的现在进行时为：reciprocating...

progenitor的音标：progenitor的英式发音音标为：[prəʊ'dʒenɪtə(r)]progenitor的美式发音音标为：[proʊ'dʒenɪtə(r)]...

appropriative的音标：appropriative的英式发音音标为：[ə'prəʊprɪˌeɪtɪv]appropriative的美式发音音标为：[ə'proʊprɪˌeɪtɪv]...

I've had a very unproductive day.我这一天什么事都没干成。Research workers are well aware that much of their time and effort is unproductive.研究人员很清楚，他们的很多时间和精力全都是白费。...increasingly unproductive land.越来越贫瘠的土地One quarter of the co...

progressives的音标：progressives的英式发音音标为：[prəɡ'resɪvz]progressives的美式发音音标为：[prəɡ'resɪvz]...

A poor wedding is a prologue to misery.不幸的婚姻是痛苦的开始.The prologue to the novel is written in the form of a newspaper account.这本小说的序言是以报纸报道的形式写的。The prologue to the report is brief and to the point.这篇报道的导语写得言简意赅....

n.字处理...

n.氯丙烷...

n.房地产(property的名词复数)，财产，所有权，特性...

disproving的音标：...

prosecutors的音标：prosecutors的英式发音音标为：[p'rɒsɪkju:təz]prosecutors的美式发音音标为：[p'rɒsɪkjutəz]...

His promotion caused much heartburning among his rivals.他的升职招致对手的嫉妒.Not getting the promotion was a real downer.未得到提升真让人很沮丧。Doyle was passed over for promotion.多伊尔未被考虑提升.His promotion was assured.他的晋升是无疑的。He's at a ...

The inquiry pronounced for the protesters against the scheme.调查结果断定反对这一方案者获胜.Like the protesters of subsequent generations, they laid themselves open to the charge of snobbery.和以后各代的反对者一样, 他们被人们骂为摆绅士架子.Your captain said ...

n.推进剂，推进物( propellant的名词复数 )...

It's been proven by the greatest optometrists.这可是最伟大的配镜师验证肯定了的.The use of a microbially produced glycolipid emulsifier has proven helpful.微生物产生的糖脂乳化剂非常有效.The safety of tacrine has not yet been proven, and there is c...

v.（大学的）学监，监考人( proctor的过去式和过去分词 )...

promise的复数形式为：promises...

adv.敏捷地，迅速地，立即地，毫不迟疑...

overprotective的音标：overprotective的英式发音音标为：[ˌəʊvəprə'tektɪv]overprotective的美式发音音标为：[ˌoʊvərprə'tektɪv]...

The roof has been fireproofed.这个屋顶装有防火设备....

cyclopropene的音标：cyclopropene的英式发音音标为：[saɪkləʊ'prəʊpi:n]cyclopropene的美式发音音标为：[saɪkloʊ'proʊpin]...

disproves的音标：...

Have you assumed all along that he was above reproach?你就能确定他不会受到责备 吗 ?His conduct has been beyond reproach.他的行为无可指责。It was a jest rather than a reproach...这与其说是责备，还不如说是句玩笑呢。We begin to reproach ourselves for not having b...

microreproduction的音标：microreproduction的英式发音音标为：[ˌmaɪkrəˌri:prə'dʌkʃən]microreproduction的美式发音音标为：[ˌmaɪkrəˌriprə'dʌkʃən]...

微生物蛋白质...