【時事百寶箱】什麼是薩德系統

The first of two Terminal High Altitude Area Defense (THAAD) interceptors is launched during a successful intercept test Source: Successful Mission (Public Domain)

美國在南韓部署薩德系統，引發中國方面強烈反對。究竟什麼是「薩德導彈防禦系統」？余睿章在今集的「時事百寶箱」，為大家介紹這個系統的威力。

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