1. It is hard to work efficiently in such a confined space.
   在这样狭小的空间里工作很难提高效率.
2. That 's because you do not work efficiently.
   那是因为你没有效率。
3. You should work more efficiently.
   你得工作得更有效率。
4. handles problems efficiently.
   有效地处理问题
5. They slaughtered quickly and efficiently.
   他们杀得又迅速又在行。

　1个副词解释