每日清洁走廊墙壁，天花，地面，指示牌，墙灯。

Clean corridor wall, top ceiling, floor corner, sign board and wall lamp daily.

youdao

每日清洁走廊墙壁，天花，地面，指示牌，墙灯。

Clean corridor wall, top ceiling, floor corner, sign board and wall lamp daily.

youdao