serpentine

他那些曲折的辩解让人难以相信他的诚意。

His ___serpentine excuses made it hard to trust his sincerity.

花园里的小径蜿蜒如蛇形。

The garden path has a ___serpentine shape, twisting like a snake.

花园里有一条蜿蜒的小路通向凉亭。

There is a ___serpentine path in the garden leading to the pavilion.