We should require a survey report, so that we may know the extent of the damage.
我们将要求出具检验报告,以便我们能了解损坏的程度。
It then sends these signals down an ordinary telephone line to another fax machine, which changes the signals back into the shapes of letters.
然后把这些符号通过一条普通的电话线送到另一台传真机上,传真机又把符号变为字母形状。