形容词
中文翻译：痛苦的
同义词：
['sour', 'harsh', 'sharp']
例句：
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1.The bitter taste of medicine made him feel nauseous.
药的苦味让他感到恶心。
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2.The bitter truth is that he has to work overtime.
残酷的事实是，他得加班。
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3.Her bitter disappointment was evident in her voice.
她明显的失望之情从她的声音中流露出来。