altitude

At high altitude, reduced atmospheric pressure causes the boiling point of water to fall below 100 degrees Celsius.在高海拔地区，气压降低会导致水的沸点降至摄氏100度以下。

The altitude of the Tibetan Plateau makes it one of the most challenging environments for human habitation.青藏高原的海拔使其成为人类居住环境中最具挑战性的地区之一。