“可疑的”用英语怎么说

约瑟夫看到一群可疑的人在密西西比河的一艘轮船上打牌。Joseph watched a shady-looking bunch playing cards aboard a Mississippi steamer.他最好的朋友在极其可疑的情况下被警察打死了。His best friend was killed by police under extremely questionable circumstances.他报告说两个形迹可疑的人...