throw+sb+in+at+the+deep+end是什么意思

at the deep end 是一个短语，从难入手，指在没有任何准备的情况下接受一个比较难的任务。

英文解释: given a difficult job to do without preparation.

例句: I was thrown in at the deep end when my company sent me to run the German office. I was only given two day's notice to prepare.