Para1：
1.The chart shows greatchanges in the number/proportion of 主题词 from 年份 to 年份。
According to the figures given above,one can seethe number /proportion of 主题词has increased/decreased from 数字to 数字 (while the number of hasincreased/decreased from to ).
1.The chart shows greatchanges in the number/proportion of 主题词 from 年份 to 年份。
According to the figures given above,one can seethe number /proportion of 主题词has increased/decreased from 数字to 数字 (while the number of hasincreased/decreased from to ).
