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...
I've had a very unproductive day.我这一天什么事都没干成。One quarter of the country is reckoned as unproductive.该国四分之一的土地被认为是不毛之地.To prospect for ( oil, for example ) in an area supposed to be unproductive.盲目开掘在认为资源不足的地区盲目找 ( 如...
The living organisms somehow concentrated the minerals by biological processes...生命体通过某种生物过程聚集矿物质。Conclusions Concentrated cod - liver oil gutta and erythromycin can promote the ulcer to heal.结论浓缩鱼肝油滴剂加红霉素可促进溃疡愈合.Most de...
他叹口气，转身远眺大海。He sighed, turning away and surveying the sea.马蒂·利斯站在房间里,透过玻璃拉门向外远眺.Martin Liss stood in the room looking north through the sliding glass doors.他们也不交换充满欲望的一瞥,相反, 他们从对方身体旁远眺出去.Instead of exchanging lustful gla...
用糠醇和糠醛缩聚制备了新型呋喃树脂.A novel furan resin was synthesized by polycondensation between furfuralcohol and furfural.糠醛树脂化结焦是导致催化剂失活的主要原因.Resinification of furfural on the catalyst was the main cause of deactivation.图5醋酸苯胺比色法,糠醛...
They sprawl at ease across the sofa, arms draped over the back.他们惬意地躺在沙发上，胳膊搭在后面。He sat on the two-seater sofa in the partitioned office.他坐在用隔板隔开的办公室里的双人沙发上。Daniel leaned back on the sofa, still chewing on his apple.丹尼尔倚...