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Number (1): Everything in this space must add up to 1. The answer is 4-0, placed horizontally; 0-0, placed vertically; 1-1, placed horizontally.
，这一点在safew官方版本下载中也有详细论述
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The typical SpeedPro franchisee
Josh Dury, from Bristol, photographed the phenomenon from a radar memorial in Worth Matravers, Dorset, on Tuesday just after 18:30 GMT.