我愿做一棵植根于荒漠的绿树，在为人类作出贡献的同时，自己也获得新的生命。
I wanna be a tree rooted in the desert tree, to contribute to mankind at the same time, they also get a new life.
爱迪生理所当然地是属于美国的和世界的为人类进步作出贡献的伟人。
Edison rightly belongs among America's and the world's great contributors to the progress of man.
今后土壤学必须为人类享有充足的食物和清洁的环境作出贡献。
Soil science must make an important contribution to that mankind enjoys enough foods and a clean environment.
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