The spokesman talked on condition of anonymity, per department rules.

这个发言人在没有透漏他的名字和部门的情况下发言的。

youdao

They also spoke on condition of anonymity, fearing for their own safety.

为了安全，他们以匿名为条件接受了采访。

youdao

The witnesses spoke on condition of anonymity because they feared reprisals.

目击者以匿名为条件接收了采访，因为他们惧怕受到报复。

youdao

The official,who spoke on condition of anonymity, indicated Admiral Mullen had an idea what the request would be, but wanted to receive the official document in person and hear details directly from General McChrystal.

VOA: standard.2009.09.25

Another senior defense official, who spoke on condition of anonymity, said last week that any change in the complex series of agreements could unravel the entire plan, which was 15 years in the making.

VOA: standard.2009.10.18

The official spoke on condition of anonymity because he was not authorized to be identified.

NPR: Drone Strike Comes Despite Transparency Pledge

All officials spoke on condition of anonymity because they weren't authorized to talk to the media.

NPR: Alarm Grows As Iraqi Forces Fail To Stem Violence

All officials spoke on condition of anonymity because they were not authorized to release the information.

NPR: Evening Bomb Blasts Kill 30 In Baghdad