该国的政界人士均已松了口气。The country's politicians are already heaving a collective sigh of relief.一群人冷不防地冒出来，跑来跑去地拍松垫子，这把她吓坏了。She panics when people pop in unexpectedly, rushing round plumping cushions.她无聊地扯着裙子上一根松掉的线头。She id...
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...