形容词
中文翻译：单调的
同义词：
['dull', 'monotonous', 'uninteresting']
例句：
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1.The music was too monotonous to listen to.
音乐太单调，听不下去。
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2. The speaker's voice was monotonous, lacking in variety.
演讲者的嗓音单调，缺乏变化。
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3.The scenery was monotonous, with no variation in the landscape.
风景单调，没有变化。