umstroke

词形变化

umstrokes 复数 umstrokes

释义与例句

n.
  1. 1.

    The circumference or periphery of a circle.

    废旧
  2. 2.

    A boundary line, especially one at the outermost limit; an extreme edge.

    古体

词源

From um- + stroke.

来源：wiktionary