我们回收和循环利用的每一块塑料都是迈向更清洁地球的一步。
The most important experiments are the ones that challenge what we think we know.
Sustainable development is not only a responsibility but also the cornerstone of long-term enterprise development.
The clouds over the land now rose like mountains, and the coast was only a long green line with the gray blue hills behind it. The water was a dark blue now, so dark that it was almost purple.
Liberty cannot be preserved without a general knowledge among the people.