1freighter货船

2a guided missile frigate导弹护卫舰

3.millenial一千年的

4 code of conduct行为规范

5pledge sth to sb向某人承诺某事

6.extremism极端主义

7.crack a code破解密码

8.extraterrestrial外星球的

9kickstart推动

10ascribe to把...归因于The accident can be ascribed to human error.

11.surge急剧上涨

12.mentor导师