三人行，必有我师(焉)

成语
三言两语 succinctly, in a few words
不苟言笑 serious, reserved, taciturn
一派胡言 complete nonsense
( ”pinyin” )

词汇
合, close/equal/total/join; 合法, legitimate/legal; 合格, qualified; 合理, reasonable; 合作, cooperation/collaboration; 场合, occasion; 结合, combination; 联合, union; 联合国, United Nations; 配合, coordination; 适合, fit; 组合, combination ( ”pinyin” )
https://mandarinbean.com/new-hsk-3-word-list/

Guardian:
就凭你的三言两语，我才没有那么容易上当, I'm not going to be taken in that easily by just a few words from you
那个老大在我们处里那是出了名的不苟言笑，道德标宾, the boss is famous in our department for being serious and moral
一派胡言。--是不是胡说? Complete nonsense. --Is it?
合作愉快, here's to our cooperation

Me:
我以为他不苟言笑，但是来熟一下他其实很喜欢聊天。
你的话根本不合理。

语法
就 + X + 而言 (formal)/来说 (casual) "with regard to X only" (bottom of page)
https://resources.allsetlearning.com/chinese/grammar/Limiting_scope_with_%22jiu%22

词汇
路边, roadside; 道路, road; 公路, highway; 问路, ask for directions; 一路平安, safe journey; 一路顺风, bon voyage ( pinyin )
https://mandarinbean.com/new-hsk-2-word-list/

Guardian:
就那天接触而言，我觉得他不像是烛九的同伙, with regard to that day's contact, I don't believe him to be one of Zhu Jiu's people.
就你刚才的表现而言, with regard to the expression you used just now
路边的店里, in a store on the street

Me:
就昨天的问题来说，我觉得我们不该怪他。
我们在路边的小店买了很多桃子，你也吃吧。