形容词
中文翻译：Unknown
同义词：
['heavy', 'grave', 'profound', 'heavy burden']
例句：
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1. The rain was so heavy that it made the streets flooded.
雨下得很大，街道被淹没了。
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2. His grief was so profound that he couldn't speak.
他的悲痛太深了，他说不出话来。
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3. This heavy burden is too much for her to bear.
这个沉重的负担对她来说太重了。