Learner's definition of UPKEEP
[noncount]
: the process of keeping something in good condition : the care or maintenance of buildings, equipment, etc.房屋、设备等的）保养，维修，维护 -
Who is responsible for the upkeep of these buildings?谁负责这些大楼的维修？
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Once your car gets that old, the cost of upkeep can get very expensive.一旦你的车旧到了那种程度，保养费就会非常昂贵。
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The yard requires very little upkeep.这个院子不需要怎么打理。
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We sold our horse because we could no longer afford its upkeep.我们把马卖掉了，因为养不起它。