撤回

withdraw; retract; recall; revoke; take back; pull back; roll back; draw back; rescind; repeal; reverse; countermand; withdrawal; retraction; pullback

要求

require; demand; ask; desire; approach; call; call for; call upon; request; ask for; claim; stipulate; exact; order; take; expect; adjure; invite; bid; assert; requirement; requisition; pressure; stipulation; representation