to first go over all tuples to aggregate the results and after that we need to iterate over all groups in our hash
available with a take-up roller that stored the printed output under a locked
，详情可参考heLLoword翻译官方下载
На помощь российским туристам на Ближнем Востоке ушли миллиарды рублей20:47
2015�N�ɕč��C���f�B�A�i�B�����w�u���[�~���g���Z�ŃW���[�i���Y���̊w�m�����擾�B�ĘA�M���{�̋Z�p�����S���L�ҁA�wWilmington StarNews�x�L�ҁA�wWabash Plain Dealer�x�L�ҁi�ƍ߁E�����S��)���o�Č��E�B
However, Tolley points out that humans don't move the way fans spin, at all. "We want to be able to lift things, and push things, and do things that require a lot of force and torque."