3 sentences

1. 这条公路沿着山势呈曲线延伸。

   zhè tiáo gōng​lù yán​zhe shān​shì chéng qū​xiàn yán​shēn.

   This highway winds along the terrain of the mountains.

   Source: Dong Chinese Dictionary

2. 这条曲线呈现出一个完美的弧形。

   zhè tiáo qū​xiàn chéng​xiàn chū yī gè wán​měi de hú xíng.

   This curve presents a perfect arc shape.

   Source: Dong Chinese Dictionary

3. 他试图通过曲线迂回的策略，巧妙地避开了对手的阻挠。

   tā shì​tú tōng​guò qū​xiàn yū​huí de cè​lüè, qiǎo​miào de bì​kāi le duì​shǒu de zǔ​náo.

   He tried to cleverly bypass his opponent's interference through a roundabout strategy.

   Source: Dong Chinese Dictionary