(noun.) a swinging or sliding barrier that will close the entrance to a room or building or vehicle; 'he knocked on the door'; 'he slammed the door as he left'.
(noun.) a room that is entered via a door; 'his office is the third door down the hall on the left'.
(noun.) a structure where people live or work (usually ordered along a street or road); 'the office next door'; 'they live two doors up the street from us'.
(noun.) anything providing a means of access (or escape); 'we closed the door to Haitian immigrants'; 'education is the door to success'.
手打:托马斯
校对:史蒂文