to be snowed under with work 工作忙得不可开交（成语）
英文释义
To have too much work to do; to have no time for anything in life except work.
例句
I wanted to take off tomorrow because it's my grandfather's one hundredth birthday, but I can't because I'm snowed under with work at my office.
我明天想休假，因为我祖父要过100岁生日，但我办不到，因为办公室的工作让我忙得不可开交。