She was secretly vetted before she ever undertook any work for me...她在为我工作以前曾受到过秘密考查。The recruits were thoroughly vetted before they were allowed into the secret service.情报机关招募的新成员要经过严格的审查。He had not been allowed to read...
Every year we have charity days to raise money for unfortunate people.每年我们都有慈善日来筹款帮助贫困人群。Raise one foot, curl the toes and point the foot down-wards.抬起一只脚，弯曲脚趾，使脚尖朝下。The object of the exercise is to raise money for the c...
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...