in detail还是In details???

in detail
详细地
He told us the accident in detail.
他详细地把事故讲给我们听。
Please explain the arbitration clause in detail, will you?
请您把仲裁条款详细地解释一下好吗？
The most brilliant person may be mired in detail and confusion.
即使是最聪明的人也会陷入琐事与混乱之中。

in detail: 精细地，明细地：注意细节地；彻底地，吹毛求疵地：

e.g,

explained her proposal in detail.
详细解释她的方案

in detail，副词，详细地