I heard a mutter of discontent.我听到有人小声咕哝着表示不满.Warum so tief – und warum gerade jetzt – Mutter Angst sag'mir?(为何我不能)攻击生活?They shake their heads and mutter darkly.他们一边摇头，一边阴沉地小声嘀咕。Don't mutter when they are study...
Increased consumption of water has led to rapid depletion of groundwater reserves.用水量的增加导致了地下水贮备迅速枯竭.What they find could provide clues to what might happen worldwide if ozone depletion continues.他们的发现可以揭示如果臭氧持续减少，世界范围内可...
He has been devoting his whole life to benefiting mankind.他把自己的一生贡献给了造福人类的事业.He has devoted his whole life to benefiting mankind.他为全人类的利益献出了自己的一生.There are a lot of new buildings benefiting from the harnessing of solar e...