三米厚的水泥墙把他的实验室和外界隔绝开来，这原来是准备用来隔绝核辐射的。

Three meters worth of concrete walls stand between his lab and the outside.

youdao

三米厚的水泥墙把他的实验室和外界隔绝开来，这原来是准备用来隔绝核辐射的。

Three meters worth of concrete walls stand between his lab and the outside.

youdao