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1.altitude n. 高度
例句：The aircraft had reached its cruising altitude of about 39,000 feet.
飞机已到达约3.9万英尺的巡航高度。
2.romp n. 顽皮嬉闹，玩闹
例句：Kids just love being able to romp around in the fresh air without having to wrap up warm.
孩子们非常喜欢不用裹着厚实的衣服在空气新鲜的户外嬉闹。
