詞匯

1.?????????????disinfect??給……消毒

2.?????????????plug in??與（電器/電源） 插上

3.?????????????standard??標準的

4.?????????????layer?層

5.?????????????carbon fiber?碳纖維

?

Reusable face mask

Israeli researchers say they have invented a reusable face mask that can kill the coronavirus with heat by drawing power from a mobile phone charger.

The disinfecting process takes about 30 minutes—and users should not wear the mask while it is plugged in.

The new mask has a USB port that connects to a power source such as a standard cellphone charger that heats an inner layer of carbon fibers to 70 degrees Celsius, high enough to kill viruses.