mid-14c., from Old French perpetuel "without end" (12c.) and directly from Latin perpetualis "universal," in Medieval Latin "permanent," from perpetuus "continuous, universal," from perpetis, genitive of Old Latin perpes "lasting," probably from per- "through" + root of petere "to seek, go to, aim at" (see petition (n.)). Related: Perpetually. Perpetual motion is attested from 1590s.
雙語例句
1. Little by little she lost the taut, strained air of perpetual anxiety.
長期焦慮帶來的緊張而疲憊的神色從她臉上慢慢消失了。
來自柯林斯例句
2. Nothing seems to dampen his perpetual enthusiasm.
似乎沒有什么能讓他那持久的熱情消退。
來自柯林斯例句
3. Outdoors, mosquitoes and midges were a perpetual torment.