duly
🇺🇸
/ˈduːli/
🇬🇧
/ˈdjuːli/
in the proper way
The form was duly filled out and submitted on time.
表格已按規定方式填寫並按時提交。
at the right time
The package was duly delivered at 10 AM as promised.
包裹如約在上午10點準時送達。