knock on wood
成語所屬單字knock
knock on wood — 慣用語
1. a phrase said after mentioning something good about your situation, to express t
1.慣用語
釋義
老天保佑（在提到好運後說，以免倒楣）
a phrase said after mentioning something good about your situation, to express the wish that your good luck will continue without being spoiled by bad luck
例句
I have never broken a bone in my life, knock on wood.
The project is going well so far, knock on wood, but we still have a lot of work ahead.