2. Rescue efforts have been hampered by bad weather,
treacherous mountain terrain and thousands of aftershocks, some of them quite severe.
救援工作被恶劣的天气、危险的山势地形和几千次的余震阻碍，有些余震非常强烈。
3. A
treacherous computing application would let you read the words on the screen, but would not let you produce an unencrypted document that you could use in other ways.
一个「背判了的计算」应用程式将会让您在萤幕上阅读这些文字，但是不让您〔能够〕制作出一份可以让您以其它方式使用的解密文件。
