Alone and entirely by myself (as the school-boy said in translating the " Bellum Gallicum" ) did I beard a railway refreshment-room young lady in her own lair.

我独自一人（正如那个男学生在翻译“Bellum Gallicum” 时所说的那样）独自一人在她自己的巢穴里找到了一位铁路茶点室的年轻女士。