对于业余博物学者来说，在一片空地上或被炸后的废墟里可能发现种类繁多的植物群和动物群。A vacant lot or a bombsite can, to the amateur naturalist, produce an extraordinary variety of flora and fauna.通过观察某些现存的动物群和植物群,我们就能更清楚地了解这种困难了.We shall appreciate this difficult...
他的辅导教师发现了他在阅读和写作方面进步的迹象。His remedial teacher sees signs of progress in his reading and writing.那所教师培训学院为该学院的创立者立了一块纪念牌匾。The teacher training college put up a plaque to the college's founder.他现在是一位教师，并且是社区内受人尊敬的一员。He...
你把这两种配料掺合匀了 吗 ?Have you mixed those two ingredients well together?他带着一种优越感和羞涩掺合在一起的奇怪神情笑了起来.He laughed with his odd mixture of superiority and shyness.合金由不同的金属掺合制成.Different metals are blended together to make alloys....
By controlling fermentation and refining conditions, it is possible to reduce citrinin content in Monascus products.通过优化液态发酵过程及提取精制过程中的相应措施, 可有效降低红曲桔霉素含量....