- The sport of skiing over the countryside rather than on downhill runs.越野滑雪：一种穿越乡间而不是沿着山坡滑行的滑雪运动
- extranets
- extranuclear
- extraocular muscle
- extraordinaire
- extraordinary
- extrapolate
- extrapolated
- extrapolates
- extrapolating
- extrapyramidal
- extras
- extrasensory
- extrasensory perception
- extrasystole
- extraterrestrial
- extraterrestrial
- extraterritorial
- extraterritoriality
- extrauterine
- extravagance
- extravagances
- extravagancies
- extravagancy
- extravagant
- extravagants