所有员工都完全超负荷了。

All the staff are completely ___overloaded.

今晚我不能出去——我工作负担过重。

I can’t go out tonight – I’m ___overloaded with work.

我也工作负担过重，对于是否加入这个小组有很多疑虑。

I was also ___overloaded with work and had many doubts about joining the group at all.