Passengers should remain seated until the aircraft reaches its cruising altitude, the captain announced.

機長廣播表示，在飛機抵達巡航高度之前，乘客應保持就座。

Our new warehouse in the mountains sits at an altitude of nearly two thousand meters.

我們位於山區的新倉庫海拔將近兩千公尺。

The tour brochure warns travelers that the high altitude may cause headaches on the first day.

旅遊手冊提醒旅客，高海拔可能在第一天引起頭痛。