动词
中文翻译：Unknown
同义词：
['listen', 'pay attention to', 'be alert to']
例句：
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1. The teacherasked us to hark at the instructions carefully.
老师让我们仔细听指示。
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2.He hark to the sound of the waves as he walks along the beach.
他在海边散步时，听着海浪的声音。
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3. She hark back to her childhood memories every chance she gets.
她每次有机会都会回忆起童年的记忆。