您要查找的是不是：
- Physicians who were on call for48 hours. 48小时随叫随到的医生们
- The fire fighter rushed to the spot in good time. 消防队及时赶到现场。
- Would you like to be a fire fighter? 然后你会听到老师说 Yes或是 No
- Alan was the vet on call last night. 艾伦是一名兽医，昨晚召之即来。
- Tim has been a fire fighter for five years. 蒂姆成为消防队员已经有五年的时间了。
- Peter asked how one could be a fire fighter. 听了之后请你把话引述一遍,所以答案就是
- Doctors are expected to be on call day and night. 医生日夜准备应诊看病。
- Doctor Liu is on call at all times. 不论什么时候刘医生随叫随到。
- I'll be on call the night of the party. 在聚会的晚上我将随时听凭召唤。
- Processing message on call handling thread. 正在处理呼叫处理线程上的消息。
- How England strengthens her fire fighter's self protection? 英国如何加强消防队员的自我防护?
- Dr. Hale is on call at the hospital. 黑尔医生在医院里等待出诊。
- The fire fighter is searching the room for the victims. 那名消防员在房间中寻找受害者。
- Aren't you scheduled to be on call? 你不是排好时间表随时待命的吗?
- Doctors should be on call at any hour. 医生应随时都能出诊。
- One fire fighter ran into the house and scooped up the screaming baby. 其中一个消防队员冲进入房间，一下子抱起了惊叫的小孩。
- It is not enough only to draw on fire fighters in case of fire. We should know what to do when a fire breaks out. 万一失火，光依靠消防队员是不够的，我们应知道发生火灾时该怎么做。
- Les Putnam, a fire fighter in Berkeley, watches television between calls. 一个伯克利消防员，在没有电话期间观看电视。
- I'm doing an essential task, “like a police officer or a fire fighter. 我干的是一项很必要的工作，“就像警察或者消防队员一样。”
- The doctors in our clinic are on call day and night. 无论白天黑夜,我们医务室的医生总是随叫随到。
