夏洛克福尔摩斯和华生医生在野营。他们在满天星星下扎了营之后就睡着了。

Sherlock Holmes and Dr Watson were going camping. They pitched their tent under the stars and went to sleep.

过去：小说中，侦探夏洛克福尔摩斯以运用逻辑推理能力破获悬案而著称于世。

Then: The fictional detective, Sherlock Holmes, is famous for using his powers of logic and reasoning to solve difficult cases.