The most visible sign of the intensity of the crisis is unemployment.

危机加剧的最明显迹象是失业情况。

He showed no visible sign of emotion.

他丝毫不露声色。

Secondly, gracious hospitality is another visible sign of faith.

其次，接待客旅也是信心的另一个表现。

Summer had slipped into autumn but no visible sign alerted her to the fact.

秋季已经悄然取代了夏季，但是却没有任何明显的迹象让她意识到这一点。

These nouns denote bright light, especially when it is a visible sign of combustion.

这些名词意指强烈的光，尤指燃烧时的可见信号。