形容词短语
中文翻译：非常迟钝的
同义词：
['dull', 'lifeless', 'vacant']
例句：
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1. The painting is so dullthat it barely captures the beauty ofnature.
这幅画如此单调，几乎捕捉不到大自然的美。
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2. Hisspeech was so dull thateveryone fell asleep during the presentation.
他的演讲如此枯燥，以至于在演讲过程中所有人都睡着了。
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3. The old man'seyes were dull and lifeless,reflecting a life spent in solitude.
老人的眼睛黯淡无光，透露出一生孤独的生活。