In 2006, the warning was upgraded to a black box warning, the FDA's strongest formofwarning, because of new data concerning risks of heart valve damage.
Yet, most scientists agree that some formof early warning system could save tens of thousands of lives.
但绝大部分科学家都认为地震早期预警系统的建立可能会挽救成千上万人的 生命。
3
The death penalty remains an iconic formof punishment in China, where executions are used as a public warning. Sentencing is broadcast on national television.