2 sentences

1. 这些古老的建筑需要精心的养护。

   zhè​xiē gǔ​lǎo de jiàn​zhù xū​yào jīng​xīn de yǎng​hù.

   These ancient buildings require meticulous maintenance.

   Source: Dong Chinese Dictionary

2. 混凝土浇筑完毕后应及时进行养护。

   hùn​níng​tǔ jiāo​zhù wán​bì hòu yīng jí​shí jìn​xíng yǎng​hù.

   After the concrete is poured, it should be cured in a timely manner.

   Source: Dong Chinese Dictionary