习惯法的

例句：

1. 1. The customary way of celebrating Christmas is with a big feast.
   庆祝圣诞节的传统方式是举行一场盛大的宴会。
2. 2.The customary practice of the company was to meet every morning at the main office.
   公司的常规做法是每天早上在总部见面。
3. 3.Customs vary from country to country, so it's important to be aware of local customs when traveling abroad.
   各国习俗不同，出国旅行时要注意当地的风俗习惯。