The straight and curved lines with a pencil point is dancing on the paper!
那些直的、弯的线条随着铅笔的笔尖在纸上舞蹈！
They hunt game with spears or a curved wooden boomerang.
他们用长矛或木制曲形飞镖猎取野味。
A new type of gears generated with sine-curved rack are put forward.
提出一种以正弦曲线为生成齿条的齿廓曲线生成的新型齿轮。
It is an antique with a curved flight deck.
它是个古董，甲板是滑跃式的。
Curved top with full-zip closure.
全拉链的顶部呈弧形。
Curved top with full-zip closure.
全拉链的顶部呈弧形。
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