door: n.1.门，户。2.入口，门口；通道，门径，门路，关口。3.一户，一家。4.【船、机】盖，口。短语和例子the front [back] door 正[后]门。 a street door 临街大门。 shut the door behind [after] him 把他身后的门关上。 Mind the door! 注意门户! Is the door to 是从这道门走吗？
door to door: （集装箱运输）门到门挨家挨户户到户户对户接取送达门到门门到门门到门运输门对门服务
If operators need to go outside to carry out plant checks they should go out through the supervisors office keeping one door closed at all times 如果操作人员需要出去检查装置，他们应经过班长办公室出去，并让一扇门一直关闭。
