He had to rack his brains to solve that complicated problem.
他不得不绞尽脑汁去
个复杂问题。
He had to rack his brains to solve that complicated problem.
他不得不绞尽脑汁去个复杂问题。
She is worrying the problem out.
她正在绞尽脑汁这个问题。
明：以上例句、词性分类均由互联网资源自动
，
分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
