1·However, the staff member escorting the man out of the bank noticed the knife sticking out of his pocket and a bloodstain on his trousers.
然而，送他出去的银行职员发现他的口袋里露出一把刀，而且他的裤子上还有血迹。
2·So forensic scientists could use a bloodstain to narrow a victim’s age to within two decades.
这样，法医可以利用血迹是受害者的年龄范围缩小到20年以内。
3·Legal medical expert still found a bloodstain of the murdered in his clothes although the suspect had washed.
嫌疑犯洗过他的衣服，可法医专家仍然在衣服上找到了一处被害人的血迹。
4·Legal medical expert still found a bloodstain of the murdered in his clothes although the suspect had washed it.
嫌疑犯洗过他的衣服，可法医专家仍然在衣服上找到了一处被害人的血迹。
5·On steering wheel, on gauge board, but also moistens has boy's bloodstain.
在方向盘上，在测量仪板，沾有男孩的血迹。