zigzag
The path descended the hill in a series of zigzags.
小路呈连续的之字形顺着山坡蜿蜒而下。
英语解释：a line or pattern that looks like a series of letter Ws as it bends to the left and then to the right again 锯齿形线条(或形状)；之字形
备注：英英解释中的Ws指的是许多个字母W，“Z”形的形状连在一起，横着看就像有许多个W，所以Ws.