难度:**

The federal workers who remain are now facing the prospect of going without pay for an indefinite period-or possibly even losing their jobs.

who remain 是定语从句，只有主谓

留下来的联邦雇员现在正面临一段未知多长时期的停发工资，甚至可能丢掉工作。

to date=until now 迄今为止

off the payroll=layoff 裁员