名词
中文翻译：Unknown
同义词：
['happiness', 'contentment', 'gladness', 'joy', 'bliss', 'serenity', 'peace']
例句：
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1. She felt a surge of happiness wash over her as she received the news.
她听到这个消息时，感到一阵幸福涌上心头。
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2. The tranquil countryside was a welcome respite from the hustle and bustle of city life.
宁静的乡村是城市喧嚣生活的一个令人欢迎的避风港。
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3. After years of hard work, he finally achieved his goal and felt a deep sense of eutocia.
经过多年的辛勤工作，他终于实现了自己的目标，感到深深的满足和快乐。