三人行，必有我师(焉)

语法
一方面 X, (另)一方面 Y "on the one hand X, on the other hand Y"
https://resources.allsetlearning.com/chinese/grammar/Expressing_various_aspects_with_%22yi_fangmian%22

词汇
该, 应该, should (pinyin in tags)
https://mandarinbean.com/new-hsk-2-word-list/

Guardian:
[no 一方面]
赵处长应该知道在地面上本使不能亲自去追查出逃的地星人, you should know that I cannot hunt down escaped Dixingren above ground myself
你应该明白我的意思吧, you should understand what I mean.

Me:
我一方面想怪她，另一方面能了解她的想法。
你不应该进入那里。