Tens of thousands of workers can now make claims from their employers backdated to as long ago as 1998.

成千上万工人，以追溯至1998年以前，要求他们赔偿损失。

You can actually backdate years as well.

您实际上也以回溯年份。

That was retroactively backdated, but that has not been made public by the government.

追溯，但政府还没有公开。

We published it because we've seen the data that actually backdates the first case.

我们发布它因为我们已经看到了实际回溯第一个案例数据。

They have now backdated, at least publicly backdated, the first case to December 1.

他们现在已经将第一个案例日期回溯，至少公开回溯到 12 月 1 日。