一团粉尘在他周围扬起。The powdery dust rose in a cloud around him.暴风雪夹着大团的积雪吹过湖面。A blizzard was blasting great drifts of snow across the lake.他一把扯下那女孩的照片，将它揉成一团。He tore down the girl's photograph, and crumpled it into a ball....
He mistakenly ascribes the expression "survival of the fittest" to Charles Darwin.他错误地认为“适者生存”是查尔斯·达尔文说的。Natural selection ensures only the fittest survive to pass their genes on to the next generation.自然选择确保只有最适应环境的物种得以...