失业率此后开始逐年上升，并在1998年3月达到最高点约5.5%。
The unemployment rate thereafter started to rise yearly and reached its highest rate in March 1998 approximately 5.5%.
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thereafter英 /ðeərˈɑːftə/|美 /ðɛrˈæftər/
解释
thereafter 是由 there（那里）和 after（之后）组成的复合副词，字面意思是"在那之后"，表示"此后、之后"的时间关系。
The unemployment rate thereafter started to rise yearly and reached its highest rate in March 1998 approximately 5.5%.
thereafter 是由 there（那里）和 after（之后）组成的复合副词，字面意思是"在那之后"，表示"此后、之后"的时间关系。