I spent half an hour working out the math problem.这里的working 还有working out前边用加to吗?这句话翻译成?
问题描述：
I spent half an hour working out the math problem.这里的working 还有working out前边用加to吗?这句话翻译成?
答
work out 解决 ,算出
不用加to
翻译：我用了半小时算出（解答）这道数学题.