vt.花費(fèi)；消耗

He lived high and expended largely. 他生活講究，花費(fèi)很大。

He has expended much time and energy on that experiment. 他已經(jīng)花費(fèi)許多時(shí)間、金錢在那實(shí)驗(yàn)上。

The soldiers expended all their ammunition in that fight. 士兵在那場(chǎng)戰(zhàn)斗中用盡了所有的彈藥。

I had expended much time on the work but they told me it's useless. 我花了很多時(shí)間在這件工作上，他們卻告訴我說(shuō)這是無(wú)用的。

expend的基本意思是“花費(fèi),使用(錢等)做某事”,其賓語(yǔ)可以是錢、時(shí)間、精力等,常與in或on連用。