Now the wool is orange or yellow.

VOA: special.2010.08.02

because all we konw now it's orange alert, the alert level has gone up or gone down We don't really know what it goes on behind the scene.

我们都知道现在是橙色警报，警戒线时高时低,我们真的不知道,事情背后是如何处理的。

普林斯顿公开课 - 国际座谈会课程节选

You might have also heard about the RISC complex, or the RNA silencing complex, and these are the biological mechanisms that are involved here and only shown by orange arrows on this slide.

你们也可能听说过RISC复合体,也叫RNA沉默复合体,幻灯片上给出了这些涉及的生物机理过程,并将它用橙色的箭头指示出来

耶鲁公开课 - 生物医学工程探索课程节选