gate与door这两个名词都有“门”的意思。
gate : 指校园、公园、工厂、城市或庭院等的大门，通常有墙无顶。
- The lift won't move if the safety gate isn't shut properly.
如果防护门没有关好，电梯不会开动。 - All passengers for flight LH103 please proceed to gate 16.
搭乘 LH103次班机的乘客请前往16号登机口登机。
door : 指建筑物的大门或房间的门，一般有墙有顶，也指车辆等的门。
- the front door
前门 - the back door
后门 - a car door
车门 - a sliding door
推拉门 - The door to his bedroom was locked.
他卧室的门上了锁。 - We could hear someone knocking at/on the door.
我们能听到有人在敲门。
