こわす

こわすってわたしが作った艇をこわす気？

When you say “destroy,” do you mean you’re going to destroy the boat I made?

— 紅の豚 (1992)

働きすぎて体をこわすなよ。

Don't work so hard that you make yourself sick.

こわすのね

You're going to break it, aren't you?

— 紅の豚 (1992)

そんな生活してたら体こわすよ。

If you keep living like that, you'll ruin your health.