by good luck

例句：

1. 1. She won the lottery and is living a life of luxury by good luck.
   她中了彩票，靠运气过上了奢华的生活。
2. 2. He was lucky to escape injury in the accident by good luck.
   他在事故中幸运地没有受伤。
3. 3. The team's performance was due to good luck, not their skill.
   球队的表现得益于运气，而不是他们的技巧。