The athletes trained at altitude in Mexico City.

　　田徑運動(dòng)員在海拔高的墨西哥城受訓。

　　Snow leopards live at high altitudes.

　　雪豹生活在海拔高的地區。

　　The following day I ran my first race at high altitude.

　　第二天我第一次在高海拔地區參加了賽跑。

　　The pilot decided to land, but as we lost altitude the wind became stronger

　　飛行員決定著(zhù)陸，但隨著(zhù)我們越飛越低，風(fēng)變得越來(lái)越大。

　　The aircraft had reached its cruising altitude of about 39,000 feet

　　飛機已到達約3.9萬(wàn)英尺的巡航高度。