It enables scientists to transfer genes between different species that would not interbreed in nature.它使科学家之间的转移基因的不同物种,不会杂交的性质.These species do not interbreed.这些物种不能杂交.They were rare , and the pure - strain wild turkeys...
These species do not interbreed.这些物种不能杂交.It enables scientists to transfer genes between different species that would not interbreed in nature.它使科学家之间的转移基因的不同物种,不会杂交的性质.They were rare , and the pure - strain wild turkeys...
They remain stranded in freezing weather and rapidly worsening conditions.他们仍然被困着，天气严寒，情况迅速恶化。Authorities requisitioned hotel rooms to lodge more than 3,000 stranded Christmas vacationers.当局征用旅馆房间安顿了3,000多名无处落脚的圣诞度假者。a s...
We want to get at the truth. Who killed him? And why?我们想查明真相。是谁杀了他？为什么？The files are difficult for you to get at.档案你是难以看到的.The cat is on the chair trying to get at the bird.猫在椅子上想逮那只鸟....