以下为句子列表：
英文: A small town, desperate to recover from hard economic times, is under threat when voracious Snakehead fish mutate and survive previous lake chemical poisonings.
中文: 一个为从经济危机中恢复而铤而走险的小镇，时下正处于在化学有毒物质污染的湖泊中幸存下来，突变的凶残的黑鱼威胁下。
更详细...
英文: After being exposed to cosmic radiation and zero gravity, some seeds may mutate and produce higher yields and improved quality when planted back on earth, scientists said.
中文: 科学家介绍，在宇宙辐射和失重环境下，有些种子可能会发生变异，这些变异种种植到地球上后，能培育出高产优质的新品种。
更详细...
英文: But health officials worry that as the virus spreads in birds, it increases the chance it could mutate into a form that passes easily among humans, killing millions.
中文: 但是，医疗官员担心，病毒在禽鸟中传播，增加了发生变异而在人类中间传播的可能性，从而造成数百万人死亡。
更详细...
英文: But scientists are concern the virus could mutate into a form more easily spread between humans, causing a pandemic.
中文: 但是科学家关注的是病毒可以变异成一种能在人类中轻易传染的病毒，导致广泛流行。
更详细...
英文: By freeing introns from the need to splice themselves, the spliceosome would in effect have encouraged introns to proliferate, mutate and evolve.
中文: 剪接体的出现让插入子不再需要自行剪接，结果等于鼓励插入子增生、突变与演化。
更详细...
|
