The Seaman was a bar for pool players and hard drinkers.“水手”是供台球玩家和酒徒消遣的酒吧。The Greek seaman went to the hospital five times.这位希腊海员到该医院去过五次.Her father had been a mer-chant seaman, absent for much of her child-hood.她爸爸曾是商船...
肺细胞约每周新老更替一次。Lung cells die and are replaced about once a week.昼夜更替.Day and night alternate.从事高等教育的人员新老更替极其缓慢。There has been very little renewal of personnel in higher education....