| 单词 | touch-tone |
| 释义 | touch-tone /tuch"tohn'/, adj. 1. of or pertaining to a tone-dialing system or a push-button phone operating on tone dialing. n. 2. (sometimes cap.) a tone-dialing system. 3. a telephone utilizing this system. Also, touchtone. [1955-60, Amer.] |
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