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词汇
happiness
词根词缀
词源：
1520s, "good fortune," from happy + -ness. Meaning "pleasant and contented mental state" is from 1590s.
词根记忆：
n.
幸福(happy+ness)[hap=chance,表示"机会,运气"]
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更新时间：2026/7/10 4:57:05