back room

n 1 (esp unimportant) room at the back of a building 後室（位於建筑物後部的房间, 尤指无重要用途的）. 2 (idm 习语) ,back-room `boys (infml 口 esp Brit) scientists, engineers, research workers, etc who receive little public attention 在幕後默默工作的科学家、工程师、研究人员等.

babyhood, babyish, Babylonian, baccalaureate, baccarat, bacchanal, baccy, Bach, bachelor, bacillus, back, back and forth, back away, back down, back down off, back down/off, back number, back of, back out of, back road, back seat, back talk, back up, back-bench, back-bencher, back-breaking, back-formation, back-pedal, back-up, back-yard, backache, backbite, backbiter, backbiting, backbone, backchat, backcloth, backcomb (also tease), backdate, backdrop,