库

kù warehouse; storehouse; (file) library

博

bó old variant of 博[bo2]

bó extensive; ample; rich; obtain; aim; to win; to get; plentiful; to gamble

光学

guāng xué optics; optical (instrument)

为什么

wèi shén me why?; for what reason?

没有

méi yǒu haven't; hasn't; doesn't exist; to not have; to not be

旗舰店

qí jiàn diàn flagship (store)

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