LEARNit Dictionary
block and tackle
noun
/ˌblɒk ən ˈtækl/
UK
/ˌblɑːk ən ˈtækl/
US
1
a piece of equipment for lifting heavy objects, which works by a system of ropes and pulleys(= small wheels around which the ropes are stretched)
قرقره و طناب, مکانیزم قرقره و طناب, طناب و قرقره