They are now trying to prove the viruses found in lake ice can actually survive well enough to re-infect birds when the ice melts.
他们现在正在努力证明，在湖冰中找到的病毒确实能很好地活下来，在冰融化之时再次感染鸟类。
2
Initially, this image need not be the latest complete image of a production server: you are just trying to prove that you can re-create a server from one cloud in another cloud's location.