jan·i·tor /ˈʤænətɚ/
守衛,門警,管理人
janitor
銷毀; 管理員
Jan·i·tor n.
1. A door-keeper; a porter. [Archaic]
2. One who is employed to care for a public building, or a building occupied for offices, suites of rooms, etc.; a caretaker; -- the duties may include removal of trash, cleaning of the rooms and public areas, and minor repairs.
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janitor
n : someone employed to clean and maintain a building