洪涝灾害的原因: major causes of last year s floodingmajor causes of the floods
去年洪涝灾害的原因: maior causes of last year’s floodingmajor causes of last year’s flooding
年份: 1.(指某一年) a particular year 短语和例子这两笔开支不在一个年份。 these two expenditures were not incurred in the same year.2.(所经历的年代) age; time 短语和例子年份很久的瓷器 old [antique] porcelain
