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[VOA常速英语视频] 来看看3D打印汽车
Today's cars are manufactured like this, a process that requires large amounts of energy and manpower.But enthusiasts say very soon, building a mass-produced car may begin like this.2018-09-19 编辑：Wendy
Severity: Notice
Message: Memcache::connect(): Server 127.0.0.1 (tcp 11211, udp 0) failed with: Connection refused (111)
Filename: libraries/Cache_file.php
Line Number: 28
Severity: Warning
Message: Memcache::connect(): Can't connect to 127.0.0.1:11211, Connection refused (111)
Filename: libraries/Cache_file.php
Line Number: 28
2018-09-19 编辑：Wendy
