1. But in2007 Google Earth sleuths found that four unconnected buildings on the base formed an unfortunate shape when viewed from above: a swastika.
而2007年谷歌地球探测器发现该基地四座互不相连的建筑在俯瞰时形成了不吉祥的图形：纳粹十字。
1. Thousands joined in the denunciation of the philanderer and online sleuths were able to discover and publish the identity and contact information of the student.
2. Brain surgeons in those days were medical sleuths, relying largely on patients'accounts of their symptoms to figure out where the tumor was.
3. By solving the clues and finding the picture, a code will be available for successful sleuths to submit to NEO's Facebook site.
4. With the help of animal lovers from around the country, the volunteer sleuths tracked down the video makers to Luobei County in Hegang City.