“到底”造句

我真的不理解这到底有什么意义，简直是愚蠢透顶。
I don't see the point in it really. It's just stupid.

我不能判定他到底是英勇无畏还是精神失常。
I couldn't decide whether he was incredibly brave or just insane.

我认为他坚持到底非常勇敢。
I think it was very brave of him to tough it out.

• #到底