黄河流经九个省区，在中国北方蜿蜒流动。

黄河流经九个省区，在中国北方蜿蜒流动。
A.The Yellow River flows through nine provinces, meandering in northern China.
B.The Yellow River flows through nine provinces, meandering and flowing in northern China.
正确答案：The Yellow River flows through nine provinces, meandering in northern China.