雅思寫(xiě)作小作文圖表題常用短語(yǔ)(6)

By 2002, this improvement had reached a plateau.

到了 2002年，這種上升勢(shì)頭開(kāi)始進(jìn)入了一個(gè)平穩(wěn)的階段。

近義：level out (at... ) / maintain the same level /remain stable 維持在(某個(gè)水平上)

The number of cases of the disease remained relatively stable in 2009.

在2009年，該病的病例數(shù)量維持在一個(gè)穩(wěn)定的水平上。

反義：fluctuate around... / fluctuate between...and…

Their total leisure time per week fluctuated between 22 hours and 35 hours.

他們每周的空閑時(shí)間在22個(gè)小時(shí)到35個(gè)小時(shí)間上下波動(dòng)。