1 to go somewhere with someone -- 跟隨,一同去
3 If something is coming along, it is developing or improving. -- 發展;進步
Hassan's English is really coming along. 哈桑的英語確實在進步。
We're going to the swimming pool - you can come along later if you want.
I was waiting at the airport when who should come along but Mr Pettigrew!