Seconds count in an emergency .
紧急关头每一秒钟都很重要。
Seconds count in an emergency, and knowing what to do can mean the difference between life and death.
在紧急情况中分分秒秒都事关重要，知道怎么办就可能意味着生死攸关。
Seconds count in an emergency, and knowing what to do can mean the difference between life and death.
紧急情况下每秒都很重要，知道应该做些什么可能意味着生死之别。
Seconds count in an emergency, and knowing what to do can mean the difference between life and death.
紧急情况下每秒都很重要，知道应该做些什么可能意味着生死之别。
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