2 sentences

1. 他的飞行时长已累计达到一千小时。

   tā de fēi​xíng shí​cháng yǐ lěi​jì dá​dào yī​qiān xiǎo​shí.

   His total flight time has reached one thousand hours.

   Source: Dong Chinese Dictionary

2. 该项目的累计投资额已经超过了预算。

   gāi xiàng​mù de lěi​jì tóu​zī'é yǐ​jīng chāo​guò le yù​suàn.

   The cumulative investment for the project has already exceeded the budget.

   Source: Dong Chinese Dictionary