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where was the railway station where the railway station was how could I get to the railway station how I can get to the railway station
Bo-Bo 2（Bo-Bo） Bo-Bo-Bo Co一oC
NH4BO3 NH4HBO3 NH4H2BO3 NH3BO4
Bo—Bo 2（Bo—Bo） Bo—Bo—Bo Co—Co
the railway enables people travel fast the railway brings comfort to people the railway makes the world peaceful the railway leads the world to war as well
set Txt Bo focus set Txt Bo focus=true Txt Bo Set Focus Txt Bo Set Focus=true
where is the railway station how I can get to the railway station whether I can get to the railway station what could I do to get to the railway station
Co—Co 2（Bo—Bo） Bo—Bo Bo—Bo—Bo
Bo—Bo Bo—Bo—Bo 2（Bo—Bo） Co—Co
how can I get to the Beijing Railway Station how I can get to the Beijing Railway Station where can I get to the Beijing Railway Station whether can I get to the Beijing Railway Station
AO为冷锋，BO为暖锋 AO为暖锋，BO为冷锋 AO、BO都是暖锋 AO、BO都是冷锋
highway railway aircraft railway
M与Bo平行。 M与Bo方向相反。 M与Bo垂直。 Mxy为零。 Mz达到反向最大值。
AO先被拉断 BO先被拉断 AO、BO同时被拉断 条件不足，无法判断 
the author belongs to the anti-railway group the author belongs to the pro-railway group the author speaks highly of the railway the author may never take train because of its potential dangers
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