The diagonal line across the upper right corner of the image is a road.

图中右上角的斜线则是一条公路。

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Draw a diagonal line to divide the square into two triangles.

画一条对角线，把正方形分成两个三角形。

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The line GH is a diagonal line.

线段GH是一条对角线。

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It starts out in a straight line and then it hops off on a diagonal.

马以直线出发但必须飞对角线。

耶鲁公开课 - 1945年后的美国小说课程节选

Participants place markers over randomly called numbers on the cards in an attempt to form a preselected pattern such as a horizontal, vertical, or diagonal line, or all four corners.

FORBES: 10 (er, 11) Uses For Leftover Halloween Candy

McGuire gave the Rhinos hope with a diagonal run to the corner and he stretched out of a tackle from Jeffries to plant the ball over the line and then, three minutes before the break, Senior took Sinfield's pass to go through a gap and send Burrow over for a try.

BBC: Bradford 14-30 Leeds