gāo tiě huàn chéng shí jiān jǐn shí, xiān wèn yǒu méi yǒu biàn jié huàn chéng tōng dào高铁换乘时间紧时,先问有没有便捷换乘通道。When the transfer time for high-speed rail is tight, first ask if there is a convenient transfer passage.