他们有一套非常精良的设备.They had a very refined apparatus.他们在边境上集结了装备精良的军队.They massed well - equipped troops on the frontier.业余人士拍摄的视频片段和制作精良的好莱坞影片之间存在着巨大的差距。There's a big difference between an amateur video and a slick Holly...

“精良的”的英语可以翻译为：excellent，of the best quality，superior ...