(Brit.)(of a buyer) sign a legal contract with the vendor of a property or piece of land, making the purchase legally binding and enforceable
(英)（买方）与财产或土地的卖方签订合同以使交易具有法律效力
as a thing exchanged
作为交换
it would cancel its disciplinary hearing in exchange for Harding's dropping her lawsuit.
作为哈定撤诉的交换条件，它将取消其惩戒性的听证会。