used in coordination with 我 wǒ or 他 tā to indicate multiple people or reciprocal actions

To come; to arrive; to move toward the speaker; to crop up or happen

used in combination with 你 nǐ to refer to people in general or reciprocal actions (e.g. 你来我往 nǐ​lái​wǒ​wǎng)

to go to a place; to leave or depart; to go in order to do something