| 单词 | on-off |
| 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 |
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