Correct

通例

/ tōnglì /
Strokes

Definition

general rule/standard practice

Example

As a Noun

general rule; common/usual practice

1
Xīng
星期日
xiūxi
休息
shì
guān
机关
de
tōng
通例
  

It is a general rule that offices are closed on Sundays.

As a Noun

universal law