侥幸

She is not usually good at table tennis; that winning stroke was a fluke.

"她平时乒乓球打得并不好,那取胜的击抽球不过是侥幸而已。"

Don't expect to luck through without an effort.

别指望不经努力就能侥幸成功。

And this goes up in certain level, let furnisher have fluky mentality.

而这在定程度上，让家具商有了侥幸的心理。