This could be the leaves turning from green to yellow or red, the leaves falling to the ground, or the first signs of holly berries.

这可能是叶子从绿色变成黄色或红色，叶子落在地上，或冬青浆果的第一个迹象。

youdao

The first signs of the dawn appear on the horizon.

黎明的曙光出现在地平线上。

《新英汉大辞典》

The first signs of distress emerged in housing.

最初的危险信号产生于住房市场。

youdao

But experts generally advise against using the drug if more than three hours have passed after the first signs of a stroke.

VOA: special.2009.09.22

There are some important signs, I think, especially in the first two books of Paradise Lost of what we can think of as Milton's - it's a literary fantasy, a literary fantasy of forgetfulness.

我认为有一些重要的迹象，尤其是在,《失乐园》的前两册书中,从那里我们可以思考弥尔顿之所想,这是一次对于遗忘的文学幻想。

耶鲁公开课 - 弥尔顿课程节选

But traditional guidelines say not to use tPA if more than three hours have passed after the first signs of a stroke.

VOA: special.2009.08.12

Not long after it opened, the neighborhood showed the first signs of growth in years.

FORBES: Life After Wall Street

The first signs of weakness came earlier this week when the commodities began to really crack.

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More important are the first signs of defiance in Cosa Nostra's home town of Palermo.

ECONOMIST: The Mafia in Italy