Yet observers say Burmese officials still have a long way to go to create a free Internet environment.

然而观察家称缅甸官员在创造自由的互联网环境方面仍有很远的路要走。

The study involved laboratory mice. It found that adult mice raised in a germ free environment were more likely to develop allergies, asthma and other auto immune disorders

这项研究使用了实验室老鼠。研究发现，成年老鼠在无菌环境中长大更容易出现过敏、哮喘和其他自体免疫紊乱。