Compact reference and perspective

Pitfall: Apposition refers to one person here, not two coordinated people.

Pitfall: 找 is searching; 找到 expresses successful finding.

一个一个地来 come one at a time; 一张一张地检查 check sheet by sheet. The repeated unit controls how the activity is distributed, not how many participants exist in total.

Pitfall: The repetition gives a manner of distribution rather than multiplication.

不大不小 neither big nor small; 不早不晚 neither early nor late. Other conventional 不A不B forms can express different relationships. Do not generalize one gloss to every idiom.

Pitfall: Do not assume any two adjectives create a conventional four-character phrase.

Pitfall: It expresses elapsed time, not a prohibition on waiting.

Pitfall: Separate inference from certainty; the evidence may still be incomplete.

Pitfall: The phrase identifies whose judgment it is, not a physical location.