That makes traditional lighting expensive and environmentally hazardous .

这就使传统的照明方式昂贵而且对环境有害。

What 's required to make china 's cities environmentally sustainable ?

为了让中国的城市具有环境可持续性，需要做什么工作？

That 's a popular view among environmentally minded travellers .

在环保旅行者的脑海里这是一个很普遍的观点。

To the environmentally conscious , the wine bottle is not much better .

从环境意识看，葡萄酒瓶也好不到哪去。

Whether this approach is " environmentally acceptable " remains to be seen .

这种方法是否是“环境可以承受的”还有待观察。