permanence
permanencenoun- [mass noun]the state or quality of lasting or remaining unchanged indefinitely
永久(性),持久(性)
the clarity and permanence of the dyes.
染料的清晰度和耐久性。
派生permanencynoun语源- late Middle English: from medieval Latin permanentia (perhaps via French), from permanent- 'remaining to the end', from the verb permanere
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