dual-control

adj (having) two linked sets of controls, allowing operation by either of two people 双重控制的, 复式操纵的（两人中任何一人皆可操纵）: [attrib 作定语] a ,dual-control `car, ie one used for driving lessons, in which the instructor can operate the clutch and brakes 双控汽车（用以教授驾驶技术, 教师在车上可操纵离合器和刹车）.

dry dock, dry goods, dry ice, dry land, dry measure, dry rot, dry run, dry up, dry-clean, dry-nurse, dry-shod, dry-walling, drying, dryness, drystone, DSc, DSO, DT, dual, dual carriageway, dual-purpose, duality, dub, dubbin, dubiety, dubious, ducal, duchess, duchy, duck, duck-boards, duck-yard, ducking, duckling, ducks and drakes, duckweed, duct, ductile, ductility, ductless gland,