在20

• I paid two hundred dollars for it twenty years ago
  的作品，别太惊讶我在20年前用
• There ' ve been few occasions in the in the 20th century
  在20世纪的某些时候
• It ' s falling . we ' re looking at low 20s
  还在跌，我们希望能停在20来块的样子
• In the 1960s , people broke up many buildings
  在20世纪60年代，人们拆毁了许多的建筑。
• Was it in the early 1990s this happened
  这事是在20世纪90年代初发生的吗？
• The center itself got started in the early 1980s
  那个中心在20世纪80年代早期开始启动。
• After20 years in business , the garage closed up shop
  那汽车修理行在20营业年后关闭了。
• They managed to put out the fire within 20 minutes
  他们设法在20分钟内就把大火扑灭了。
• I had thought that he had died at least twenty years ago
  我原以为他在20年前就去世了。
• I can be back in 20 minutes . is that too iong
  我可以在20分钟内赶回来。是不是太久了？