累积

qián qī gè yuè wán chéng de gōng chéng liàng lěi jī qǐ lai yǐ dá dào quán nián rèn wù de yī bàn

前七个月完成的工程量累积起来，已达到全年任务的一半。

The work done in the first seven months amounts to half of the annual quota.

cháng qī lěi jī qǐ lai de wèn tí zài jǐ tiān zhī nèi bù néng jiě jué

长期累积起来的问题在几天之内不能解决。

Problems accumulated over a long period are not solved in a few days.

měi cì yòng shē zhàng kǎ dōu néng lěi jī háng kōng lǐ chéng

每次用赊账卡都能累积航空里程。

Every time you use your store card, you get air miles.