1·The word 'concatenate' is just a verbose synonym for 'catenate'.
“连接”只是“连接”的较为详细的同义词（看英文吧）。
2·Capital modern works notebook canny repair service center is a section notebook maintenance, Wraps service outside notebook, notebook accessory sales is all-in-one specialize it serve catenate agency.
首都现代办公笔记本电脑精修服务中心是集笔记本维修、笔记本外包服务、笔记本配件销售为一体的专业化IT服务连锁机构。