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....
a beer with a whisky chaser喝啤酒后接着喝威士忌酒Are you a chubby chaser or something?你是对胖子有兴趣还是其他什么?Slang A shot of hard liquor , sometimes accompanied by a beer chaser.[俚语]一杯酒:一杯烈酒, 有时还加上点啤酒....
箭毒的现代临床应用可追溯至1932年.The modern clinical use of curare probably dates from 1932.它是箭毒碱,提取自一种南美产的植物.It is a curare alkaloid derived from the South American plant.自然界最致命的生物之一,是微小的箭毒蛙.One of nature's deadliest creatures i...
她迟早会被警方逮住的。Sooner or later she would be caught by the police.迟早我得自己承担后果。Sooner or later, I'm going to have to face the music.迟早他会厌倦总是把自己排在最后。Sooner or later he may tire of constantly putting himself last....