In fact, measurements of meandering streams all over the world reveal a strikingly regular pattern: the length of one S-shaped meander tends to be about six times the width of the channel.

事实上，关于全球蜿蜒的河流的测量揭露了一个惊人的模式：一个 S 形状曲流的长度往往大约有河道宽度的六倍长。