Headaches may be a sign of stress.

头痛可能是紧张的迹象。

《牛津词典》

The snow showed no sign of melting.

雪没有一点融化的迹象。

《牛津词典》

It's a sure sign of economic recovery.

这是经济复苏的确切迹象。

《牛津词典》

No dear,Nature made you so perfectly that this small defect shocks me as being a sign of earthly imperfection."

VOA: special.2009.09.26

Some point to the presence of Egyptian names, and customs, and religious beliefs and laws as a sign of some historical memory being preserved in these stories.

一些人指出故事中埃及名字的出现，以及风俗，宗教信仰和律法,当它们当作故事中保存的历史记忆。

耶鲁公开课 - 旧约导论课程节选

This is a sign of my economic status: I don't have to work. It is middle and lower-class women who do not get to observe purdah in this way.

但这恰好是我经济地位的标志：,我不需要工作，只有中下阶层的女人,才像这样不遵守深闺的习俗。

普林斯顿公开课 - 人性课程节选

At the first sign of a strengthening dollar, you should sell the bond, she says.

FORBES: The Global Test

Check-signing authority is a telltale sign of responsible personhood, unless it is not exercised.

FORBES: Why Spouses Make Lousy Business Partners

But this was a sign of mass voting from Turkey, not of a freethinking boom.

ECONOMIST: And what it says about the role of public intellectuals