形容词
中文翻译：愉快的
同义词：
['joyful', 'glad', 'delighted', 'cheerful', 'merry']
例句：
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1. The children were cheering for their team on the field.
孩子们在场上为他们的队伍欢呼。
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2. She was so cheerful that she didn't notice the rain.
她非常高兴，以至于没注意到下雨了。
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3. The cheerful atmosphere at the party made everyone feel relaxed.
派对上欢快的气氛让每个人都感到放松。