fall-line瀑布线
to fall in line上道
fall angle line滑雪直接下滑线
Fall River Line我随着搭乘浮尔河轮船
Fall In Line请在此排队
fall into line with与
I fall down line我掉线了
fall into line排好队;排齐;保持一致;站好位置
N(名词) the natural downward course between two points on a slope 滚落线; 下滑线 [skiing]