三人行，必有我师(焉)

(I almost typoed today's title as 第八失败天. That would have been going from especially auspicious to the reverse...).

成语
独来独往 a lone wolf, unsociable, a maverick (lit. coming alone, going alone)
卧虎藏龙 concealed talent (lit. couching tiger [not a typo], hiding dragon)
打草惊蛇 to give the game away, pour encourager les autres (lit. strike grass, startle snake)
( pinyin )

词汇
走过, pass by; 走进, walk in; 走开, go away ( pinyin )
https://mandarinbean.com/new-hsk-2-word-list/

Guardian:
一珂同学她身体确实不太好，平时呢，比较喜欢独来独往, I believe Yike's health isn't very good, she usually prefers to be on her own
龙城大学还真是卧虎藏龙啊, there is certainly a lot of hidden talent at Dragon City University
就算老楚大草了惊蛇也没关系，总之呢，敌不动, it doesn't matter even if Lao Chu inadvertently tipped the enemy off, they aren't moving anyway
不对呀，这些路咱们都走过了, this isn't right, we've been down all these streets

Me:
你跟她告白之前交给她巧克力就打草惊蛇吧。
门开了啊，请随便走进。