Definition: from one part of a road, river, etc. to another Level: A2
我们沿着海滩浪漫地散步。
We took a romantic walk ___along the beach.
昨晚，我们沿着泰晤士河散步。
Last night, we walked ___along the Thames.
这条路沿着河流延伸。
The road runs ___along the river.
