If you describe a good event as miraculous, you mean that it is very surprising and unexpected.
The horse made a miraculous recovery to finish a close third.
这匹马奇迹般地恢复过来,最终以微弱的差距获得了第三名。
If someone describes a wonderful event as miraculous, they believe that the event was caused by God.
miraculous healing.
奇迹般的治愈。