Visually combining straight lines with curved lines is adding visual variety to the image.

很明显，直线与曲线的组合给画面增加更多的变化。

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They keep their muscles tense and their tails in straight lines with the rest of their bodies.

它们保持自己的肌肉紧绷，保持自己的尾巴笔直于身体的其它部分。

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For example, they divided the design of a fish into head, body and fins, alternating straight lines with curves, triangles and circles.

他们把一条鱼的侧面分割为鱼头、鱼身、鱼鳍几部分，用直线、孤线、三角形和圆圈等来表现。

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Inside, art enthusiasts mingled with timepiece lovers within the lightly colored space highlighted with dark wood tones, straight lines and minimal furnishings.

FORBES: Vacheron Constantin Unveils Timepieces for U.S. Watch and Art Lovers

Puzzlers used to starting with the outside edges will be shocked at versions that have no straight lines at all.

FORBES: The World's Best Jigsaw Puzzles

Roberts' return, for one, would provide Wales with a centre who has the size and the discipline to run straight lines and commit defenders - a quality so lacking of late.

BBC: Winless Wales still pack punch