名词门槛; 阈

1. 门槛：doorshield 炉门遮板 | doorsill 门槛 | doorspringlocks 弹簧锁

2. 门槛;门坎：doorleaf门扉 | doorsill门槛;门坎 | doorstop门挡

3. 门坎：门垫doormat | 门坎doorsill | 门口doorway

4. 门槛 (名)：Doors 门, 著名的美国摇滚乐队 (名) | doorsill 门槛 (名) | doorstep 门阶 (名)

noun

1. the sill of a door
a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway

Synonym: doorstepthreshold