perpetuityn.
英 pɜːpɪ'tjuːɪtɪ | 美 ,pɝpə'tuəti
中文n. 永恒
词根词源
perpetuity (n.)late 14c., from Old French perpetuité "permanence, duration" (13c., Modern French perpétuité) and directly from Latin perpetuitatem (nominative perpetuitas) "uninterrupted duration, continuity, continuous succession," from perpetuus (see perpetual).
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