One said the Jackson family was regarded as royalty when she was growing up, but the singer's many plastic surgeries made some believe he hoped to obscure his black identity.

VOA: standard.2009.06.28

it's this paper mend with a plastic cover and there's all these black magnetic particles here.

它是用这种纸以及一种塑料覆在上面,这里还有一些黑色磁性粒子。

哈佛公开课 - 计算机科学课程节选