Cell phones are very usefull morden invention. However we must be awaer that it can be instrument of dead.

手机是我们最常使用的现代发明。然而我们必须警惕它，手机也可能是致命武器。

youdao

Cell phones are very usefull morden invention. However we must be awaer that it can be instrument of dead.

手机是我们最常使用的现代发明。然而我们必须警惕它，手机也可能是致命武器。

youdao