Sarah's first assignment as a secret agent was to protect an important witness. 莎拉作秘密特工的第一個任務是保護一個重要證人。
It has also promised a massive security presence at the games, which may include undercover agents dressed as volunteers. 政府還承諾奧運期間會有大規模現場保安人員,其中可能包括喬裝為志願者的秘密特工。