- A dog that has been specially trained to guide a visually impaired or sightless person.导盲狗：经过特殊训练以引导视力有缺陷者或盲人的狗
- extracurriculum
- extraditable
- extradite
- extradited
- extradites
- extraditing
- extradition
- extraditions
- extrados
- extradoses
- extraembryonal
- extraembryonic
- extragalactic
- extrahepatic
- extra-high voltage
- extrajudicial
- extralegal
- extramarital
- extramundane
- extramural
- extramusical
- extraneous
- extranet
- extranets
- extranuclear