| 2 | mainly literary temporarily unable or unwilling to speak , especially because you are very shocked （尤指惊讶得）说不出话的 | Some of the passengers were dumb with terror. 有些旅客吓得说不出话。 | | be struck dumb I was struck dumb by the clerk’ s rudeness. 那位职员竟如此无礼，我一时惊讶得说不出话来。 | | | 2a | permanently unable to speakThis word is now usually considered offensive . The more usual word is speech impaired . 哑的，不能说话的（该词现在通常被认为具冒犯义。更常用的词是speech impaired） | | |