形容词
中文翻译：阴沉的
同义词：
['gloomy', 'somber', "silent例句：1. The sky was sullen and overcast.（天空阴沉，布满了乌云。）2. His face was sullen and he didn't say a word.（他的脸阴沉，一句话也没说。）"]
例句：
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1. The sky was sullen and overcast.
天空阴沉，布满了乌云。
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2. His face was sullen and he didn't say a word.
他的脸阴沉，一句话也没说。
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3.She looked sullen as she walked away from the party.
她离开派对时看起来非常忧郁。