三人行，必有我师(焉)

成语
根正苗红 a person of the proper [Communist] background (lit. correct roots, red stems)
归根结底 in the end, in the final analysis
多种多样 varied, diverse
( ”pinyin” )

词汇
根本, at all (pinyin in tags)
https://mandarinbean.com/new-hsk-3-word-list/
(look at how nicely the chengyu and vocabulary lined up today, I didn't do that on purpose)

Guardian:
我这个根正苗红的科学家怎么就没法激发出它们反应呢, how could I, a scientist of impeccable background, have no way to stimulate them to react?
这些祸不用你背，归根结底还是怨我, these problems are not your responsibility, in the last analysis they're on me
变异的途径和程度是多种多样的, mutation appears in various channels and degrees
我发现你根本就不懂我的心, I see that you don't understand my heart at all

Me:
归根结底是气候的问题，我们人类影响不了。
他根本不会听话。