closed shop

factory, business, etc whose employees must be members of a specified trade union （只雇用工会会员的）工厂、企业等: [attrib 作定语] a closed-shop agreement 只雇用工会会员的劳资协议.

close, close about, close down, close in, close one's ears to, close over, close up, close with, close with sb, close-cropped (also close-cut), close-down, close-fitting, close-grained, close-hauled, close-knit, close-run, close-set, close-up, closed, closed season, closed-circuit television, closed-minded, closely, closeness, closet, closing price, closing-time, closure, clot, cloth, clothe, clothes, clothes moth, clothes-basket, clothes-brush, clothes-hanger, clothes-horse, clothes-line, clothes-peg, clothing,