The word "相随" is formed by combining the character "相", which denotes mutual or reciprocal action, with the character "随", which means to follow or accompany. This combination results in a compound word where "相" modifies "随" to convey the meaning of following or accompanying each other.
Word Definition - 相随
xiāng suíto tag along (with sb); (in combination with 與|与[yǔ] or 和[hé]) to accompany (sb); (fig.) (of one situation) to go hand in hand (with another)