1. The U-boat (also known as the shadower) will remain just out of the detection range of the convoy and continue to shadow it while BdU coordinates an attack.
型潜艇继续在护航舰队的视野之外进行监视，直到潜艇指挥部确定攻击坐标。
2. He learns, for instance, that in shadowing a subject, one must avoid his face to watch his feet: the shadower who meets the eyes of the person he is tailing is automatically spotted and must drop from the case.
接下来的情节阐明了安托万在梅亨利的引导下，作为一名私家侦探初次登场，例如，他学到了在跟踪一个目标的时候必须小心谨慎