派生词是serpentine，中文意思是adj. 蜿蜒的，弯弯曲曲的；复杂的，阴险的。

The elongated, serpentine body that allows land snakes to slither through dense grass also serves aquatic snakes in propelling through the water.这种细长蜿蜒的身体能让陆地上的蛇在茂密的草丛中爬行，也能让水蛇在水中游动。