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1.2010年4月8日,美国总统奥巴马和俄罗斯总统梅德韦杰夫在捷克首都布拉格签署新的_____条约,同意进一步削减和限制______战略武器。
1. On April 8, 2010, U.S. President Barack Obama and Russian President Dmitry Medvedev signed a new treaty in Prague, Czech Republic, agreeing to further reduce and restrict ______ strategic weapons.