在进化的过程中, 一些鸟丧失了飞行能力.In the course of evolution, some birds have lost the power of flight.双腿直立行走的进化是原始人向人类进化的最初阶段中的一步.We think about the evolution of bipedalism as one of first events that led hominids down the path to be...
As a hangover from rationing, they mixed butter and margarine.作为食品配给制的一种遗留影响，他们总把黄油和人造黄油混在一起吃。He appeared at breakfast bleary-eyed and with a hangover.他吃早餐时两眼迷糊，宿醉未醒。She woke up with a terrible hangover.她醒来时宿醉反应很厉害。...
服务项目包括避孕建议和健康检查，并且免费提供。The service covers contraceptive advice and health checks, and is available free.重点在于通过锻炼促进健康。The emphasis is on developing fitness through exercises and training.奇怪的是，她拼命求生的抗争使得她的健康状况大有好转。Curiousl...
They were having to face up to the fact that they had lost everything.他们必须正视他们已经一无所有这个事实。I have grown up now and I have to face up to my responsibilities.我已长大成人，必须担负起自己的责任。We must face up to our responsibilities and not ...