1
at an altitude of [number]
用于描述具体高度数值，常与测量单位连用。
The aircraft is cruising at an altitude of 35,000 feet.
飞机正以35,000英尺的高度巡航。
海拔；高度
altitudes — plural of altitude
先理解核心含义，再看它在真实句子里的用法。
海拔；高度
elevation, especially above sea level or above the earth's surface
The aircraft is cruising at an altitude of 35,000 feet.
飞机正以35,000英尺的高度巡航。
通常从海平面测量的绝对高度
The absolute height of a location, usually measured from sea level.
海拔或离地高度
elevation especially above sea level or above the earth's surface
垂直距离
A vertical distance.
几何图形从底边到对顶点的垂直距离
the perpendicular distance from the base of a geometric figure to the opposite vertex (or side if parallel)
The pilot reported an altitude of 9,000 meters during the flight.
飞行员在飞行中报告了九千米的高度。
AI contextual example
At high altitudes, the air contains less oxygen.
在高海拔地区，空气中的含氧量较低。
AI contextual example
We need to check our altitude before landing.
着陆前我们需要检查高度。
AI contextual example
the altitude gave her a headache
高海拔使她头痛。
WordNet
用于描述具体高度数值，常与测量单位连用。
The aircraft is cruising at an altitude of 35,000 feet.
飞机正以35,000英尺的高度巡航。
强调达到某个高度，常用于登山或飞行。
The balloon reached an altitude of 30 kilometers.
气球达到了30公里的高度。
形容词常为 high 或 low，描述海拔高低。
High altitude can cause altitude sickness.
高海拔可能引起高原反应。
Not this
The plane is flying at a high attitude.
Use this
The plane is flying at a high altitude.
Attitude（态度）与altitude（海拔）拼写相似，但意义完全不同。这里描述飞机的高度，应用altitude。
Not this
The mountain altitudes 3000 meters.
Use this
The mountain has an altitude of 3000 meters.
Altitude是名词，不能用作动词。应使用“have an altitude of”或“the altitude is”来表达高度。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
高海拔
The plane was flying at a high altitude.
飞机在高海拔飞行。
低海拔
The helicopter hovered at low altitude.
直升机在低空盘旋。
在……的高度
Mount Everest reaches an altitude of 8,848 meters.
珠穆朗玛峰海拔8848米。
升高（高度）
The aircraft began to gain altitude after takeoff.
飞机起飞后开始爬升。
降低高度
The plane suddenly lost altitude due to turbulence.
飞机因湍流突然降低高度。
高原反应
Tourists often suffer from altitude sickness in Tibet.
游客在西藏常患高原反应。
Use altitudes naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
与latitude（纬度）对比，altitude是高度，想象alt（高）即可。
中性；多用于地理、航空、登山等场景，指海拔高度。
Often used with 'of' to specify height.
Dictionary facts from ECDICT, WIKTIONARY.