| 单词 | button a |
| 释义 | > as lemmasButton A (or B) Button A (or B) n. (also with lower-case initial in the first element) chiefly British, Irish English, Australian, and New Zealand (now historical) (in some types of public telephone) a push-button on the coin box labelled with the letter ‘A’ (or ‘B’) which is depressed to complete the connection (or to disconnect the call).Button A, typically located on the front of the coin box, was depressed to complete the connection and permit the caller to be heard when the call was answered; Button B, typically on the side of the coin box, was depressed to disconnect the call and return the coins if there was no answer or the number was engaged.Public telephones employing such buttons were introduced in the 1920s and continued to be in general use until the late 1950s and in some areas until the 1990s.extracted from buttonn.< as lemmas |
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