round-backed chair
round-backed sofa
curved-back
A: Do you like this round-backed chair?
A：你喜欢这把圆弧靠背的椅子吗？
B: Yes, the shape is very ergonomic.
B：是的，它的形状非常符合人体工程学。
1) 形容背部圆润的
2) 指物体具有弧形靠背的
1. 背部圆润的
adjective
1. having a back that is curved or rounded.