笨人难教.A stupid fellow is difficult to teach.她不愿与笨人为伍，而在她看来，大多数人都是笨人。She doesn't suffer fools gladly and, in her view, most people are fools.你会发现,我比一般的笨人还笨.You'll find I'm a more than commonly stupid man....
Many microorganisms possess the ability to dehydrohalogenate DDT to DDE.许多微生物使滴滴涕脱卤化氢变为滴滴依.The house is regularly spraying with DDT.房屋是定期用DDT喷洒.The insects can be exterminated by spraying DDT.可以用喷撒滴滴涕的方法大量杀死这种昆虫.Thousand...
Ten aryl chloroacetates were synthesized by liquid - liquid phase transfer catalysis.摘要利用液 - 液相转移催化法合成了10种氯乙酸芳酯.Aryl disulfides, for example, inhibit polyolefin oxidation.例如芳基二硫化物可抑制聚烯烃的氧化.The most effective syhthetic co...
Facies of species are often connected with extreme or disturbed habitats.植物种的群常与严酷或干扰的生境有联系.The sedimentary members are largely turbidites of greywacke facies.沉积岩的组成大部分为杂砂岩相的浊积岩.The sediments are detrital and largely of ...
A senior White House official said the agreement is close.白宫的一位高级官员说即将达成协议。The Prime Minister has the power to dismiss and appoint senior ministers.首相有权任免高级部长。I had a very high-powered senior job in publishing.我在出版界担任高层要...