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 My original version

Today I reviewed the psysics chapter conservation of mechanical energy, the point of this chapter is this law only work when non conservation forces didn't doing work. The conception can be present by the equation "delta U=-delta U or K1+U1=K2+U2, I did well in most of the questions but somehow I did wrong in some, it was like the answer were lack of some digit, but the letters were right, I tried to figure it out but I can only sovled part of these questions, I think I have to seek for AI or classmates help to deal with them. 

CHATGPT version

Today I reviewed the physics chapter on the conservation of mechanical energy. The main point of this chapter is that the law only applies when non-conservative forces are not doing any work. The concept can be represented by the equation “ΔK + ΔU = 0” or “K₁ + U₁ = K₂ + U₂.”
I did well on most of the questions, but I got some of them wrong. It seemed like my answers were missing a digit, even though the letters and formulas were correct. I tried to figure out what went wrong, and I managed to solve part of the problems. But for the rest, I think I’ll need to ask AI or my classmates for help.

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Chinese version

今天我複習了物理關於「機械能守恆」的章節。這章的重點是：當沒有非保守力做工時，這條定律才適用。這個概念可以用公式「ΔK + ΔU = 0」或「K₁ + U₁ = K₂ + U₂」來表示。
我大多數題目都做得不錯，但有些題目還是錯了。看起來我的答案少了一位數字，雖然公式和字母都對。我試著找出錯在哪裡，成功解出了一部分，但剩下的題目，我覺得需要請 AI 或同學幫忙才能解決。