Direct mail can spur people to vote, if they already agree with its message.

如果他们认同信件提供的信息，那么直接信件可以促使民众投票。

youdao

Direct mail can spur people to vote, if they already agree with its message.

如果他们认同信件提供的信息，那么直接信件可以促使民众投票。

youdao