雅思折线图句型
雅思写作中描述折线图的句型包括：
介绍性表达
The graph shows / indicates / depicts / illustrates
From the graph it is clear
It can be seen from the graph
As can be seen from the graph
As is shown / illustrated by the graph
描述趋势变化
The graph shows a gradual increase in the number of...（图表显示……数量逐渐增加）
Over the period, the figure rose steadily from... to...（在此期间，数据从……稳步上升到……）
There was a sharp decline in... between... and...（在……和……之间，……急剧下降）
The number of... peaked at... in...（……的数量在……年的……达到顶峰）
After reaching a high of..., the figure fell significantly.（在达到……的高峰后，数据显著下降）