如果将它的磁性消退，那么它连一根羽毛重量的铁块都吸不住。

Demagnetize that same piece of steel and it will be powerless to attract or lift even a feather's weight.

youdao

如果将它的磁性消退，那么它连一根羽毛重量的铁块都吸不住。

Demagnetize that same piece of steel and it will be powerless to attract or lift even a feather's weight.

youdao