OP
abbr. 观测所(Observation Post);绝版(Out of Print);操作员(Operater)
例句
He always shopped at the co-op.
他总在合作社购物。
《柯林斯英汉双解大词典》
I'm going in for my op on Monday.
星期一我要住院动手术。
《牛津词典》
The co-op sells the art work at exhibitions.
合作社在展览会上出售艺术品。