To be specific, it may start off an arms race in outer space, and may also extend the arms race from offensive weapons to defensive weapons.
具体而言，一是可能将军备竞赛引入外空，二是可能将军备竞赛从进攻性武器扩大到防御性武器。
President Obama could also choose to begin supplying Ukraine with defensive weapons, a power recently granted to him by Congress.
奥巴马也可以选择开始向乌克兰提供防御性武器，这是国会近期授予他的权力。
The Russians received assurance from Mr. Obama that offensive and defensive weapons systems would be considered together as negotiations go forward.
俄罗斯也获得了奥巴马的保证，未来的谈判中将把进攻性和防御性武器系统放在一起考虑。
The Russians received assurance from Mr. Obama that offensive and defensive weapons systems would be considered together as negotiations go forward.
俄罗斯也获得了奥巴马的保证，未来的谈判中将把进攻性和防御性武器系统放在一起考虑。
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