exist asvt.以 ... 存在existv.存在；生存；活着existing office buildings既有办公建筑existing resource reserve资源现状existing heating building既有建筑existing road modification旧路改造existing bending structure既有受弯构件existing state of teaching教学Existing state of ore body矿体赋存状况existing taxes stipulation现行税收规定existing telephone network现有电话网existing and manifestation存在与表现