精选优质文档-倾情为你奉上2020年考研英语50个常用的句子01 It is vital/ essential/ crucial/ significant for someone to do.对某人来说，做.是重要要的例句：It is vital for human beings to take immediate action to protect wild animals.对人类来说，立刻采取措施保护野生动物至关重要。02 There is little doubt that.毫无疑问例句：There is little doubt that more and more people are moving from rural areas to large cities.毫无疑问，越来越多的人从农村地区迁移到城市。03 be put under threat of遭受某物的威胁例句：Citizens are put under threat of getting infected with the viru
