导读：offduty是一个由两个单词组成的短语，其中"off"是一个介词，意为"从 离开"，"duty"是一个名词，意为"责任、义务、工作"。因此，offduty
offduty是一个由两个单词组成的短语，其中"off"是一个介词，意为"从...离开"，"duty"是一个名词，意为"责任、义务、工作"。因此，offduty的字面意思就是从责任或工作中离开。
在实际使用中，offduty通常指的是某人不在工作岗位上或不处于工作状态下。这可能是因为工作时间已经结束、休息时间到了、休假中、或者其他原因导致暂时不需要履行职责。总之，offduty可以理解为不在承担职责的状态。
offduty的用法：
1. He is offduty now, so you can't reach him.
（他现在已经下班了，所以你不上他。）
2. The security guard was offduty when the theft happened.
（发生盗窃案时保安正好不在岗位上。）
3. I'm sorry, but the doctor is offduty at the moment.
（很抱歉，医生现在不在工作状态。）
4. The captain announced that all passengers should remain in their seats until the flight crew is completely offduty.
（机长宣布所有乘客应该坐在座位上直到机组人员全部下班。）
5. The police officer was offduty when he witnessed the accident, but he still took immediate action to help.
（在下班时目睹了事故，但他仍然立即采取行动帮助。）
例句参考：
1. Sheila was offduty for the weekend, so she decided to take a trip to the beach.
（Sheila周末不上班，所以她决定去海滩旅行。）
2. The firefighters were offduty when the call came in, but they still rushed to the scene to help.
（消防员在接到呼叫时已经下班，但他们仍然冲到现场帮忙。）
3. The restaurant is closed today because all the staff are offduty for a company outing.
（餐厅今天关门，因为所有员工都要参加公司的外出活动。）
4. After working overtime for several days, I finally have a day offduty tomorrow.
（连续加班了几天后，我明天终于有一天休息时间了。）
5. The teacher reminded the students that they should not disturb her when she is offduty and enjoying her personal time.
（老师提醒学生，在她休息时间和享受个人时间时不要打扰她。）
offduty是一个常用的短语，可以指代各种离开工作状态的情况。它可以用于口语和书面语中，并且在不同场合下可以有不同的用法和含义。使用时要根据具体情况来理解和运用。