along用作副词时不用于比较等级，有向前，往前，一起等含义；用作介词时，表示沿着，顺着，靠着...边。
扩展资料
例句：
Things are going along nicely.
情况进展良好。
We cantered along the beach.
我们骑着马沿海滩慢跑。
He was walking along the street.
他沿着街道走着。
We gave chase along the footpath.
我们开始沿小路追赶。
They walked slowly along the road.
他们沿公路慢慢走。
