Hybridising the two species will reduce the red to orange.将这两个物种杂交后颜色会由红色淡化成橙色。Some animal and plant species cannot accommodate to the rapidly changing cond-itions.某些种类的动植物不能适应迅速变化的环境。The disease can spread from one mamm...
A species of cockroach sprays a substance , ethylacrolein, that is a kind of tear gas.某种蟑螂喷射一种催泪性毒气――乙 基丙烯 醛.It enables scientists to transfer genes between different species that would not interbreed in nature.它使科学家之间的转...
It'should be said GALLUS machine meshing gear teeth, there was a small staves of opportunities.不该说GALLUS的机械是歪齿轮啮合的, 呈现齿杠的时机小.Many of the men had armed themselves with staves and pieces of iron.很多人用棍棒和铁器将自己武装起来。For e...
The two biologists found, to their surprise, that both groups of birds survived equally well.这两位生物学家惊奇地发现，两组鸟都很好地存活了下来。This substance has now been cloned by molecular biologists.该物质现在已被分子生物学家克隆。The biologists are studyin...
给小牛吃奶的母牛a cow suckling her calves亚历山大总是在午餐时喝掺奶的咖啡.Alexander always has milky coffee at lunchtime.所有不产奶的牛应从奶牛中清除出来.All passengers should be eliminated from dairy herds....
The 30-year-old Scottish international was sent off for arguing with a linesman.这位30岁的苏格兰国脚因和边裁争执而被罚下场。The tennis players refused to accept the linesman's decision, so the judge ordered them to play that point over....
The theory has been superseded by more recent research.这一理论已为新近的研究所取代。The use of machinery has superseded manual labour.机器的使用已经取代了手工劳动.The sailing ships were superseded by the steamships.帆船已被汽船所取代....