Several years back there was a public service announcement that ran on television.

几年前，在电视上有个公益广告。

The reasons for service by public announcement and the process gone through shall be recorded in the case files.

公告送达，应当在案卷中记明原因和经过。

By public announcement if none of the above-mentioned methods can be employed and the service shall be considered completed in six months after the date when the public announcement was issued.

不能用上述方式送达的，公告送达，自公告之日起满六个月，即视为送达。

Can be non-profit organizations depend on the position of the persuasive, and a public service announcement.

非营利组织的地位取决于有说服力，和公益公告。