on call

汉语翻译

例句：

1. Physicians who were on call for48 hours.
   48小时随叫随到的医生们
2. The nurse is on call tonight.
   这位护士今天晚上值班。
3. Who's on call tonight?
   今晚谁值班?
4. I'm on call.
   我随叫随到。