If they want to jump down, now, and get into trouble, who objects?

如果他们现在想跳下去，惹上麻烦，谁会反对呢？

Father told me to jump down the well!

爸爸让我从井中跳下去。

Please don't jump down from trees.

请不要从树上跳下来。

I dare you to jump down this cliff.

你敢不敢从悬崖上跳下去。

I'll dare him to jump down from the roof.

保管他不敢从屋顶上跳下来。