an·te·cham·ber /ˈæntɪˌʧembɚ/
前堂,前廳,接待室
An·te·cham·ber n.
1. A chamber or apartment before the chief apartment and leading into it, in which persons wait for audience; an outer chamber. See Lobby.
2. A space viewed as the outer chamber or the entrance to an interior part.
The mouth, the antechamber to the digestive canal. --Todd & Bowman.
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antechamber
n : a large entrance or reception room or area [syn: anteroom,
entrance hall, hall, foyer, lobby, vestibule]