Typically means you are at a loss for words. Or you have nothing to say on a matter.
Jack had 'no words' after finding out his girlfriend cheated on him.
What do you think about Jack and his girl Jill breaking up?
Response: "I have no words".
Prices shown in USD.
邮件由 email@example.com 发出。我们决不会发送垃圾邮件。