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envelopes

/'envələʊps/

📖 中文释义

  1. n. 信封( envelope的复数形式 )

🔗 释义中的汉语词

🧩 词形变化

原形 envelope变形 s3
📘 English Definition(英文释义)
  1. n. a flat (usually rectangular) container for a letter, thin package, etc.
  2. n. any wrapper or covering
  3. n. a curve that is tangent to each of a family of curves