Red eyes
denote strain and fatigue.
眼睛发红显示紧张和疲劳。
Dark clouds
denote rain.
黑云预示有雨。
Crosses on the map
denote villages.
地图上的十字表示村庄。
Ultraman cards are a series of cards printed with an Ultraman or other characters from the Ultraman series of cartoons, and are marked with different figures and letters that denote their power and scarcity.
The term was coined to denote areas that rely heavily on advanced scientific knowledge, long-term R&D and continuous investment.