Circular a printed advertisement, directive, or notice intended for mass distribution.
印制的广告、传单：印成的广告、通告或通知，用于大量的分发。

They studied the geographical distribution of the disease.
他们研究了这种疾病的地域分布情况.

The contract can be terminated by either party with three months' notice.
合同的任何一方如提前三个月通知，均可终止本合同。

There are just two notices this week.
本周只有两项通知。

The company has worldwide distribution channels.
这家公司拥有遍布全世界的销售网络。