I could never be a mountaineer; I have no head for heights.

我永远也当不了登山运动员, 因为我对高山反应强烈.

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Some people develop altitude sickness when climbing high mountains.

有些人在爬高山时会发生高山反应.

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First - time climber must have acclimatization training to adjust to altitude effects and to avoid mountain sickness.

初学登山的人先得经过气候适应性训练,以适应高山反应,免得患高山病.

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