单词：altitudes
音标：['æltɪtju:dz] ；
n. 高度( altitude的复数形式 ); 海拔; 高处; 高地
n. elevation especially above sea level or above the earth's surface
n. the perpendicular distance from the base of a geometric figure to the opposite vertex (or side if parallel)
n. angular distance above the horizon (especially of a celestial object)
n. the perpendicular distance from the base of a geometric figure to the opposite vertex (or side if parallel)
n. angular distance above the horizon (especially of a celestial object)
altitudes的用法和样例：
例句
- At high altitudes it is difficult to breathe.在海拔高的地方会感到呼吸困难。
- Mountain climbers use oxygen when they reach higher altitudes.登山者在到达高海拔地区时使用氧气。
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