back room

基本解释

By the third game he insisted on retreating to a tiny back room, where he could think.
到了第三场对局，他坚持比赛要在幕后的一个狭小的房间里进行，因为在那里他才能够思考。
An entire genre of television reality shows has grown up to supply ideas for turning that pokey back room into a place of cherry wood cabinets, polished granite and brushed aluminium.
一整套的电视真人秀已经成熟起来，向人们提供种种思路，将狭小的密室改造成一个满眼樱木橱柜、磨光花岗石和铮亮铝合金的世界。
Redemption came, most notably in Brown v Board of Education, and Mr Feldman gives a compelling account of the back room dealings in the case.
补救的时候到了，大部分最著名的修正都反映在布朗诉教育局案中。弗尔德曼对该案背后的交易做了扣人心弦的叙述。

Millions of radio listeners heard a voice from the Cape Canaveral control room say: "This is it,Alan Shepard,there's no turning back.
But then suddenly they get yanked back, and they wake up, you know, in the hospital room.
但是突然他们被猛拽回来,然后他们在病房里,醒了过来
耶鲁公开课 - 死亡课程节选
But all of you in this room probably remember what we technically call the base 10 system or decimal system because back in grade school or the like, you learned to count and add and subtract numbers by way of columns.
但是，在座的每一位可能都记得,这在小学的时候学的,以10为进制的系统或者十进制系统,通过数列方式学习数数和加减法。
哈佛公开课 - 计算机科学课程节选

You might have a great product but you built it in the back room.
FORBES: Why Startups Fail

A backroom is a room that is situated at the back of a building, especially a private room.
You can use backroom to refer to people in an organization who do important work but are not seen or known about by the public. You can also use backroom to refer to a place where such people work.
If you refer to a deal made by someone such as a politician as a backroom deal, you disapprove of it because it has been made in a secret, dishonest way.