altitude noun[C, usually sing.] the height above sea level: We are flying at an altitude of 6 000 metres. ◆ The plane made a dive to a lower altitude.[C, usually pl., U] a place that is high above sea level: Snow leopards live at high altitudes. ◆ The athletes trained at altitude in Mexico City. ◆ The climbers failed to reach the summit because of altitude sickness.
有几种说法 我们目前正在海拔15000米的高空飞行。We are currently flying at an altitude （海拔）of 15000 metres.Provided by jukuu登山者在这个海拔有时会用到氧气。Mountaineers sometimes have to use oxygen at this elevation（海拔）.这条路向上延伸至海拔1000米。The road climb up to1000m above sea level（海拔）.
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