それ以上は

any more than that

→ 其れ
phrase Rare #28,801
any more than that Indicates a limit: beyond that point or amount. It is often used with negative expressions such as できない, ない, or 言えない.
JA: これ以上は待てません。それ以上は無理です。
EN: I can't wait any longer. Anything beyond that is impossible.

事情があって私にはそれ以上は言えません

For certain reasons, I can’t say anything more.

それ以上は望む方が無理です

It would be unreasonable to expect anything more than that.

それ以上はできない

I can't do any more than that.

それ以上は強欲だぞ

Anything more would be greedy.

— アメリカン・ギャングスター (2007)

彼は疲れていてそれ以上は歩けなかった

He was tired and couldn't walk any farther.