そりゃそう

that's true

→ 其れ
phrase Rare #45,348
that's true A casual contraction of それはそう, used to agree that something is true or obvious. Often followed by でしょ or だけど.
JA: そりゃそうだけど、もう少し考えてみて。
EN: That's true, but think about it a little more.

そりゃそうだろとしか言えない。

All I can say is, “Well, obviously.”

そりゃそうだけど・・・昨夜はお前のせいで―明け方まで眠れなかった

I mean, obviously... but because of you, I couldn't sleep until dawn last night.

— セントラル・ステーション (1998)

そりゃそうだけどさ

That's true, but...

— ハウルの動く城 (2004)