AUTOMATIC external defibrillators (AEDs) are a common sight in America, where many states now require them at fitness centres, schools or airports.

自动体外除颤器(AED)在美国很常见，很多州都要求健身中心、学校和机场配备这种设备。

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AUTOMATIC external defibrillators (AEDs) are a common sight in America, where many states now require them at fitness centres, schools or airports.

自动体外除颤器(AED)在美国很常见，很多州都要求健身中心、学校和机场配备这种设备。

youdao