US has stayed consistently on top b/c of an innovation economy
所有跟帖:
• 大环境有利于年轻人,未来才有希望。 -蓝调- ♀ (362 bytes) () 01/01/2020 postreply 15:30:14
• 赞同,谢谢抬爱 -beachlver- ♂ (0 bytes) () 01/01/2020 postreply 19:20:22
• 大环境有利于年轻人,未来才有希望。 -蓝调- ♀ (362 bytes) () 01/01/2020 postreply 15:30:14
• 赞同,谢谢抬爱 -beachlver- ♂ (0 bytes) () 01/01/2020 postreply 19:20:22