1、起居室的英语是：living room；lounge
例句1：I'd like the use of your living room, if I may. 可以的话，我想用一下你的起居室。
例句2：He was in the front room, or the lounge or whatever you want to call it.
他当时在客厅，或者说是在起居室，或者在叫什么都行的房间里。
2、沙发的英语是：sofa
例句：She watches TV on the sofa with me every night. 她每个夜晚和我一起在沙发上看电视。