我们可以利用毯子、帆布或瓦楞铁皮来防止掉落的瓦砾和尘土，从而保护伤者。

Protect a casualty from falling debris and dust by using blankets, tarpaulins, corrugated iron sheets, etc.

youdao

我们可以利用毯子、帆布或瓦楞铁皮来防止掉落的瓦砾和尘土，从而保护伤者。

Protect a casualty from falling debris and dust by using blankets, tarpaulins, corrugated iron sheets, etc.

youdao