农夫们用粪保持其土质的肥沃.The farmers used manure to keep up the fertility of their land.另外两个改善土质的低投入方法包括使用有机粪肥或氮、磷化肥.Two other low - input ways to improve the soil involve using manure or nitrogen and phosphorus fertilizer.另外两种低投入改...
Snow crystals grow in one of two designs—platelike and columnar.雪晶是按照两种形状中的一种——板状和圆柱形形成的。Simple columnar epithelium consists of tall, narrow cells having considerably greater height than width.单层柱状上皮由高桂状上皮细胞组成, 细胞的高度显著大于...
他为某些思想较守旧的官员所憎恶。He is loathed by some of the more traditionally minded officers.她的文学批评集中关注的是伟大的文学作品表达思想的方式。Her literary criticism focuses on the way great literature suggests ideas.他们在宣传新思想，对此她表示赞许。She applauds the fact ...
He bumped into me.他撞上了我。I often bumped into him as he padded the corridors.他在走廊里轻轻地走过时，我常常碰见他。I bumped my head into a low stone.我的头撞到了一块石头。The driver bumped the kerb while reversing.司机倒车时撞到了路边石.I almost bumped into a man...
Chambermaids will bring an iron or hair dryer on request.只要提出要求，清理房间的女服务员就会送来熨斗或电吹风。He bought a dryer yesterday.他昨天买了一台干燥机.There is a washer and a dryer in the basement.地下室里有洗衣机和烘干机....
溴化氢加成的最后一步,是负离子亲核试剂的附加.The addition of hydrogen bromide involves the attachment of an anionic nucleophile in the final step.关于加成的定向问题,可以一直追溯到自由基化学的起源.The problem of orientation of addition goes right back to the beginnin...