这些问题变得棘手了。
多数情况下，这些问题只会随着时间的推移而变得更加棘手。
In most cases, these issues only get more difficult over time.
对很多网站来说，随着Facebook逐渐成为无论对个人还是商业都极其重要的网络工具，这些问题只会变得比较棘手。
As Facebook continues to grow as an essential personal and business networking tool for most of the Web, these issues are only going to get thornier.
正当外界的禽流感专家们担心该病毒会发生突变，从而使问题变得更为棘手时，他们却发现无法获取病毒基因的数据，而这些数据是至关重要的。
Outside experts worried that the virus might be mutating in new and troublesome ways, but found their access to vital genetic data blocked.
正当外界的禽流感专家们担心该病毒会发生突变，从而使问题变得更为棘手时，他们却发现无法获取病毒基因的数据，而这些数据是至关重要的。
Outside experts worried that the virus might be mutating in new and troublesome ways, but found their access to vital genetic data blocked.
应用推荐