三人行，必有我师(焉)

语法
平常 used as an adjective, "X is ordinary, an ordinary X"
https://resources.allsetlearning.com/chinese/grammar/Comparing_%22pingshi%22_and_%22pingchang%22

词汇
影片, film; 影响, influence ( pinyin )
https://mandarinbean.com/new-hsk-2-word-list/

Guardian:
[no 平常 of this kind]
应该不会影响到目前的研究, it should not influence my current research
或许受到了圣器的影响，又或许就像夜尊说的一样是托了他的福。Perhaps it was the influence of the Hallows, or perhaps, as Ye Zun says, it was through his grace.

Me:
当年很平常的日子，跟现在不一样。
我还没看他的影片。