他赞成增加每天的课时并延长学年。He favors extending the school day and school year.他不想靠人为方式延长生命。He did not want his life to be prolonged by artificial means.我们已经把索赔期限延长到了7月30日。We have extended the time limit for claims until July 30....
由于幼虫对药物有免疫力，因此必须经常喷药。Because of the immunity of the immature insects, it'simportant to spray regularly.成人往往对风疹有免疫力。Adults are often immune to German measles.新来的人对这一疾病在当地的几种类型缺乏免疫力.The newcomers lacked immunity again...
事件过后这么多年方获知当时的内情，这实在是令人慨叹。It's fascinating to get the inside story so many years after this incident.说时摇头慨叹.As he spoke he shook his head and sighed sadly.两人慨叹不幸身为青年未婚留学生的麻烦.They both bewailed their misfortune at be...