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Hospital, government building, plaza and other lighting places: long life span and maintenance free.
医院、市政大楼、广场等照明场所：长寿命、免维护。
youdao
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Hospital, government building, plaza and other lighting places: long life span and maintenance free.
医院、市政大楼、广场等照明场所：长寿命、免维护。
youdao