marvel作名词时有“令人惊异的人（或事）”之意，it's a marvel to sb that.. ...让某人很惊讶。

【例句】
It was a marvel to me that the floor never gave way.
让我惊奇的是地板居然从未塌陷。

It's a marvel to me how they've managed to oust the interim government from power so quickly.
在我看来真不可思议，他们能这么快推翻过渡政府。