It will take a while for the drug to work out of your system.
这药得需要一段时间才能排出你的体外。
She's full of good intentions but they rarely work out.
她虽然处处出于善意，却往往事与愿违。
It is impossible to foresee how life will work out.
不可能预知生命将如何发展。
It'll work out cheaper to travel by bus.
算来还是乘公共汽车便宜些。
I work out at the gym most days.
我多数日子都在健身俱乐部锻炼身体。