动词短语
中文翻译：对
同义词：
['be interested in', 'be passionate about', 'have a passion for']
例句：
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1.I'm really keen on learning Mandarin Chinese.
我真的很热衷于学习汉语。
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2.She is keen on photography and often takes pictures of nature.
她热衷于摄影，经常拍摄自然风景。
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3.The team is keen on winning the championship this year.
这个团队热衷于今年赢得冠军。