那样一栋建筑的维护费用一定非常昂贵。

The ___upkeep of a building like that must be very expensive.

对许多退休人员来说，日常的房屋维护是一笔不小的经济负担。

For many pensioners, the daily ___upkeep of their homes is a significant financial burden.

赛马的养护需要一个专业的团队。

The ___upkeep of a racehorse requires a dedicated team of specialists.