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....
Many investors must be hoping that he will be dethroned, his publishing empire dismembered.众多投资者此时一定希望他能被撵下台，他的出版帝国四分五裂。His widow has taken over the running of his empire, including six London theatres...他的遗孀已接手管理他创下的帝国，...
发烧时，大量水分会通过排汗而丧失。During fever a large quantity of fluid is lost in perspiration.这片风景中只有一排村庄。The landscape is broken only by a string of villages.持枪歹徒朝天扫射了一排子弹。A gunman fired off a volley of shots into the air....
这是否终于可以视作和平的吉兆了？Could this at last be a good omen for peace?我总是想,厄运之后将会出现吉兆.I can't help liking to think that out of all this evil good will come.吉兆的出现不是迷信, 而是肯定.Auspicious signs are not a superstition, but a confir...
At the same time Miss Su said lightheartedly, " Aren't you ashamed?苏小姐同时活泼地说: “ 不羞!You can lightheartedly select the stuff in which you're interested andyour donation in return for them!朋友们可以较轻松的选择你们感兴趣的物品,捐出善款...