Ebola, Lassa, and Marburg fevers all have tended to flare up and die down again, but no one can say that they aren't quietly mutating away somewhere, or simply awaiting the right opportunity to burst forth in a catastrophic manner.

伊波热、拉沙热和马尔堡经常，后再度消失，但谁也说不准这些病毒是悄悄隐伏在什么地方，还是仅仅在等待合机会以灾难性方式。

Gary thinks that despite its convenience, texting creates situations where we have to tread on mines, another way of saying that something is a minefield, meaning a situation full of hidden problems and dangers, where people need to take care.

加里认为，尽管信息很方便，但它造成会让我们不得不踩在雷区。那是称某事物充满隐伏危险另一种说法，意思是充满隐患和危险，人们需要小心谨慎。