医疗机构承担着民众用药安全有效的警戒工作。
Hospital should bear the responsibility to guarantee the public to use medicine safety and effectivety.
防止乘火打劫，在火警现场做好警戒工作。
Security officers at the fire scene control the fire scene to prevent theft.
睡觉之前，避免繁重工作，否则会使身体处于警戒状态。
Avoid heavy work out just before bedtime, it makes your body alert.
睡觉之前，避免繁重工作，否则会使身体处于警戒状态。
Avoid heavy work out just before bedtime, it makes your body alert.
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