Sau ntawv xovxwm robots (ntawm Yees duab CNN)
Brian Stelter reports on how a robot helped an LA Times reporter publish news of a sudden earthquake this week.
Sau ntawv xovxwm robots
Sau ntawv xovxwm robots (ntawm Yees duab CNN)
Sau ntawv xovxwm robots (ntawm Yees duab CNN)