sofa:
n. 沙发长椅
The old sofa will have to go.
那旧沙发该扔掉了。
She was reclining on a sofa.
她倚靠在沙发上。
I decided to ditch the sofa bed.
我决定把沙发床扔掉。
The sofa also functions as a bed.
这沙发还可当床用。
couch:
n. 睡椅,长沙发床卧榻
vi. 蹲伏,埋伏躺着
vt. 使躺下表达弯下My mother likes this newly bought couch very much.
我妈妈很喜欢新买的这个长沙发。
Your promise was couched in a careless way.
你的承诺说得很随便。
My son jumped onto the couch in the doctor's office.
在医生的办公室里,我的儿子跳到了诊察台上。
sofa和couch区别
sofa和couch都是容纳2-3人坐的长沙发,两个词互为近义词。如果说区别,sofa通常有扶手,是传统意义上的长沙发。couch可以不带扶手,类似于贵妃塌。