在发生紧急情况时，卫生机构起到至关重要的作用。
During emergencies, health facilities play a vital role. They.
在发生紧急情况时，时间、组织和专业知识都至关重要。
In an emergency, timing, organization and expertise are critical.
氧气面罩储藏在您座椅上方。发生紧急情况时，面罩会自动脱落。
Your oxygen mask is above your head. It will drop down automatically in case of an emergency.
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