| 释义 |
on-offBrE /ˌɒn ˈɒf/ NAmE /ˌɑːn ˈɔːf/ adjective [only before noun ](of a switch 开关) having the positions 'on' and 'off' 开–关的;双位的;通断的;离合的◆ an on -off switch 通断开关(of a relationship 关系) interrupted by periods when the relationship is not continuing 断断续续的;间断的 |