例句與造句

1. prototrophs can grow without added factors .
   不加生長因素原養(yǎng)型也能生長。
2. and because dna removed from a body cell can be tinkered with before it is placed into an egg, lanza hopes someday to add factors-- genes for immune cells, for example, that would make a patient resistant to aids
   由于人體細(xì)胞dna在注入卵子之前可以進行修補，蘭扎希望有朝一日能加入免疫細(xì)胞基因等因素，這樣就能幫助病人抵抗艾滋病。
3. It's difficult to find add factor in a sentence. 用add factor造句挺難的