动词短语
中文翻译：向某人吹口哨
同义词：
['whistle at', 'whistle to someone']
例句：
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1.He whistled to the dog to getit to come closer.
他向狗吹口哨让它靠近。
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2. She whistled toher friends as they walked by.
她向朋友们吹口哨，当他们走过时。
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3.The children were whistling to theirfriends in the park.
孩子们在公园里向他们的朋友吹口哨。