One of the driving forces behind this recent expansion is the growth of services.

　　最近的這次經(jīng)濟(jì)擴(kuò)張背后的主要推動(dòng)力量之一是服務(wù)業(yè)的增長(zhǎng)。

　　The new digital technology would allow a rapid expansion in the number of TV channels.

　　新的數(shù)字技術(shù)將會(huì)使電視頻道的數(shù)量迅速增加。

　　The vast expansion in secondary education is putting an enormous strain on the system.

　　中等教育的大幅擴(kuò)張正對(duì)該系統(tǒng)造成巨大壓力。

　　The company has abandoned plans for further expansion.

　　該公司已經(jīng)放棄了進(jìn)一步擴(kuò)張的計(jì)劃。