There is a bloodstain on her hand.

她的手上有血迹。

There is a bloodstain on the floor.

地板上有一个血迹。

The police found a bloodstain at the scene.

警察在现场发现了血迹。

There is a small bloodstain on the sheet.

这张床单上有一个小血迹。

He tried to clean the bloodstain from his clothes.

他试图清理掉衣服上的血迹。

A bloodstain is orange after you wash it three or four times.

血迹你洗过三四次后就会变成橘黄色.

He also helps instruct others in the science every year at his Bloodstain Evidence Institute.

他还每年在他的血迹证据学会里帮助指导其他人.

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。

When I took off several wild pineapples, so many bloodstain left on my arms.

等我最后摘下那个几个菠萝时, 胳膊上早已血痕累累了.

When i took off several wild pineapples , so many bloodstain left on my arms.

等我最后摘下那个几个菠萝时，胳膊上早已血痕累累了。