So rather than giving 100% to one task at a time you are going back and forth between tasks, giving each task a monumentally less amount of focus.

你不是把100%的注意力都集中到一项任务上，而是在各项任务中不断往返，每次只分给一项任务很少的注意力。

youdao

At this juncture, the comparatively meager sacrifices that have been offered underscore a monumentally flawed strategy.

FORBES: Rupert Murdoch and the Regulators: Will News Corp. Become a Renegade Organization?

That might have made him especially eager to catch up with his superiors--and receptive to what, in retrospect, was a monumentally stupid idea.

FORBES: Magazine Article

Preliminary discussions were held on this, and it was quickly evident that making a global agreement fair to all parties will be monumentally difficult.

BBC: Science & Environment