stave 条 CALD 最简单

Oeasy

http://dictionary.cambridge.org/ ... se-simplified/stave
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elusty

CALD：the five lines and four spaces between them on which musical notes are written
6 O6 y2 ^' U" M" V' c+ aOALD9：a set of five lines on which music is written
COD11：a set of five parallel lines on or between any of which a note is written to indicate its pitch.
从上面三个词典看，OALD的解释不清楚，甚至有点儿错误（没有明确说出，两根线之间也可表示音高）。
COD11：between any of which有点儿绕。
" {. x# j" O6 h' O  r* r7 x& y这个词，CALD的确解释的清晰易懂。