“separate post”造句，怎么用separate post造句

The samples you asked for will follow by separate post.

There may be much more written about freelancing but it is a subject for a separate post.

We are pleased to send you by separate post our latest catalogue and a price list.

In technical meetings and activities on postal business not limited to states, Hongkong Post also attended as a separate postal administration using the name 'Hong Kong, China'.