短语
中文翻译：比空气重
同义词：
['heavier than the air', 'heavier than theatmosphere']
例句：
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1. The balloonwas so heavy that it couldn'tstay in the sky.
这个气球太重了，无法留在天空中。
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2. Theelephant is heavier than theaverage person.
这只大象比普通人重。
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3. The car was heavier than usual, and it took longer to start.
这辆车比平时重，启动需要更长时间。