ChaCha answers questions you ask by text message, and sends the answer and an AD or two back to your phone.

Chacha可以告诉你通过短信息提的问题，它会将答案发送到你的手机上，当然也会附带送你一到两条广告信息。

youdao

Would you want to have to go back again and again to give the same message, knowing you would get the same answer?

如果你知道你每一次都得到一样的答案，你还会不会一次又一次地，不厌其烦地回去说同样的话呢？

youdao

You can go more and more deeply into your knowledge database and give a fuller and richer answer, or you can move back to your original key message points.

FORBES: Move To Your Message Points -Media Training

They may not answer as fast as inside sales reps would, but leave a message and they will call you back.

FORBES: What is Inside Sales? The Definition of Inside Sales

Before heading to the World Trade Centre he had left a message for his wife Jean: 'I called you back but got no answer.

BBC: 9/11 defined the past decade for the US and Europe