Swivel bridges have common character,that is to assemble half bridges on land and then to swivel two half-bridges to unite them into one structure.是什么意思_Swivel bridges have common character,that is to assemble half bridges on land and then to swivel two half-bridges to unite them into one structure.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句