British Prime Minister Theresa May (R) arrives at 10 Downing Street after making a statement in the House of Commons, in London, Britain, Dec. 10, 2018. Theresa May on Monday put brakes on the crunch vote on her Brexit deal in parliament in order to buy more time for further talks with European Union leaders, who claimed that the deal, reached last month, is not negotiable. (Xinhua/Han Yan)