off-diagonal的用法和樣例：
例句
- The book has a diagonal black stripe on the cover.
書的封面上有條連接對角的黑斜線。 - Fill the rectangle with diagonal lines.
用對角線填充矩形。 - Draw a diagonal line to divide the square into two triangle.
畫一條對角線，把正方形分成兩個三角形。
辭彙搭配
- off diagonal 非對角線的
- off diagonal element 非對角線元素...
