ADJ-GRADED
(任务或难题)费力的，费劲的，劳神的
A taxing task or problem is one that requires a lot of mental or physical effort.
例句
They were comparing notes on each other's progress towards solving that most taxing of all puzzles: the riddle of the human genome...
他们就解决人类所面临的最大难题，即人类基因组之谜的进展情况交换了意见。
It's unlikely that you'll be asked to do anything too taxing.
不大可能叫你做什么太费劲的事儿。