第一种功能句型——文章开头句型

2、“如今，人们普遍认为...,但是我怀疑...。”

  Nowadays，it is generally/commonly believed that..., but I wonder that...

  3、“如同硬币的正反面，...也有积极的一面和消极的一面。”

  Like a coin has two sides, there is a positive aspect and a negative aspect to...