What's the difference between the usage of "send" and "send" in Japanese? thank you

In the meaning of "passing by", these two words are similar.

Slightly different, you can use "mail" if you plan in advance, but "mail" is not.

For example, I go to the bookstore and then go home:

○ This room is for sale.

にちちってる.

In addition, the time of "set up and send" is relatively shorter than that of "send".

For example, I went to the library to look up information:

○○○○○○○○○○○○○.

??にちってべをした.