1. (发生事故后)报废的车辆
    Something such as a vehicle that is a write-off has been so badly damaged in an accident that it is not worth repairing.

    e.g. The car was a write-off, but everyone escaped unharmed.
           这辆车报废了，但人员全部安全逃离。

2. (债务或花费的)注销，勾销
    A write-off is the decision by a company or government to accept that they will never recover a debt or an amount of money that has been spent on something.

write-off在线翻译

    e.g. Mr James persuaded the banks to accept a large write-off of debt.
           詹姆斯先生说服银行同意注销一大笔债务。

3. 失败的计划;白费的时间
    If you describe a plan or period of time as a write-off, you mean that it has been a failure and you have achieved nothing.

    e.g. Today was really a bit of a write-off for me...
           今天对我来说真的有点儿白白浪费了。
    e.g. For him, the rest of the decade was a creative write-off.
           对他来说，这个十年所余下的时间是一段创作空白。

1. the act of cancelling from an account a bad debt or a worthless asset

2. (accounting) reduction in the book value of an asset

    Synonym: write-down