名词中文翻译
中文翻译：心情愉快
同义词：
['cheerfulness', 'cheerfulness', 'cheerfulness']
例句：
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1. She was solighthearted that she couldn't help but laugh at everything around her.
她心情轻松，忍不住对周围的一切都笑。
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2.The children were all lighthearted and happy during the picnic.
孩子们在野餐时都心情愉快、快乐。
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3. His lightheartedness made everyone feel relaxed and comfortable around him.
他的轻松愉快让周围的人感到放松和舒适。