伤脑筋

I am greatly embarrassed with this work.

这工作伤脑。

The spelling of English is often puzzling.

英语的拼写法常常人伤脑。

There are more headaches for me than for you.

让伤脑的问题比你多。

The man felt a delicacy about balancing between his mother and his wife.

那人为平衡处理与母和妻子的关系伤脑。

And Henry-wifeless, childless, jobless-never had to tussle with such details as variable-rate mortgages.

而亨利无妻，无子，无工作------他不必为利率不同的抵押这类事情伤脑。