英语翻译

无法承担,无法理解.网络例句：
This job is over my head.
这工作非我所能承担.
What you said is over my head.
也许我应该扔掉我的语法书,重新开始.
But operating this machine is over my head.
但是,看来要弄明白怎麽用电脑对我来说实在是太难了.
The lesson today was hard; it went over my head.
今天的功课太难,我理解不了.
The book is beyond me; it went over my head.
这本书我看不懂,它太难理解了.
The TOEFL test last time was quite over my head.
上次的托福考试我简直无法应付.
Their conversation was in Cantonese which was way over my head.
他们讲的是广东话,我完全听不懂.
The English lesson today was so difficult that it went over my head.
今天的英文课太难,我无法了解.
My new house is not a palace,but at least it means I have a roof over my head.
我的新居不是一座宫殿,但至少我有了自己的栖身之处.