bloodstain的复数形式怎么拼写？

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.Dawn bloodstain, estimate his face with uniform and gangsters scattered after prisoners.黎明脸上满布血痕, 估计他与匪徒恶斗后再制服犯人.He also helps instruct others...

bloodstain的音标：bloodstain的英式发音音标为：['blʌdsteɪn]bloodstain的美式发音音标为：['blʌdˌsten]...

n.血迹...