| 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 |