三人行，必有我师(焉)

成语
Okay, the thing is that most of the remaining C1 grammar points are quite obscure; I'm open to requests/suggestions but I feel like I for one might rather get a firmer handle on points up through B2 etc. before dwelling heavily on the C1 ones. As a breather of sorts while I figure out what to do next, I want to move a little away from grammar and do some 成语. Fortunately even just based on the Guardian theme there are no shortage of these, I found 11 in the first episode alone (and probably missed a couple there), so I will be introducing some of these for a few days in here.
相安无事, to coexist peacefully
无所不知, to know everything under the sun
班门弄斧, to show off in front of a master of the art, to teach your grandmother to suck eggs
( pinyin )

词汇
找出, find out (pinyin in tags)
https://mandarinbean.com/new-hsk-2-word-list/

Guardian:
海星人，亚兽族人，地星人三方缔结和平协议，从此相安无事直到今天, Haixingren, Yashou tribes, and Dixingren signed a peace treaty and have lived peacefully together until today
我在这里请大家先放弃掉我们是无所不知的这种想法, but here I ask everyone to abandon the idea that we know everything there is to know
在您面前班门弄斧让您见笑了, you must have found my untutored speech laughable
发案现场的第一目击者是谁，找出来, find out who the first witness at the scene of the incident was

Me:
看完你的作品以后不能给你看我的，太班门弄斧了。
他找不出他的眼镜。