a loner, a lone wolf あるいはantisocial かもしれません。ちなみに「子連れ狼」の英語訳はLone Wolf and Cubです。ちなみに馬の子供はfoalです。
http://www.youtube.com/watch?v=n2jEUv5MWYw 1:36 lone wolf terrorist
https://www.youtube.com/watch?v=ORa22pYoVUM 0:32 you're looking at a lone wolf terror attack in progress.
練習問題解答
a-3714 lone wolves
b-1987 a lone wolf
http://www.youtube.com/watch?v=n2jEUv5MWYw 1:36 lone wolf terrorist
https://www.youtube.com/watch?v=ORa22pYoVUM 0:32 you're looking at a lone wolf terror attack in progress.
練習問題解答
a-3714 lone wolves
b-1987 a lone wolf