Just as… (as someone put it) (正如…所)

Structure 正如 + source + 所 + verb（那样），+ argument

正如…所… (zhèngrú… suǒ…) brings in a quotation, an authority, or a shared truth that backs up the claim to come: "just as… noted / as the saying goes…". The 所 sits before a verb of speech or judgement (言, 说, 述, 预料…), and the clause often closes with 那样 or 一样. It belongs to essays and argumentative prose, a notch above the 正如…一样 already seen at HSK 5. Equally formal variants: 诚如 (even more emphatic and bookish) and 一如 (especially in the set phrase 一如既往, "as ever, unchanged").

Examples

正zhèng如rú古gǔ人rén所suǒ言yán，欲yù速sù则zé不bù达dá。
Just as the ancients said, haste does not bring success.
正zhèng如rú专zhuān家jiā所suǒ预yù料liào的de那nà样yàng，房fáng价jià继jì续xù下xià跌diē。
Just as the experts had foreseen, housing prices kept falling.
诚chéng如rú报bào告gào所suǒ述shù，问wèn题tí的de根gēn源yuán在zài于yú管guǎn理lǐ。
Just as the report sets out, the root of the problem lies in management.
他tā一yī如rú既jì往wǎng地de支zhī持chí这zhè项xiàng改gǎi革gé。
He backed this reform as he always had.

Levels are indicative: they follow the standard Chinese Grammar Wiki (AllSet Learning) progression, not an official HSK 3.0 mapping. We never assign levels by eye.

This point and the other 370, with audio on every example, inside Wanyu.