The topic of man's nature is an old and ever green theme in philosophy.

人的本质问题是哲学上既古老又常青的永恒话题。

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The theme of the 2019 Beijing International Horticultural Expo is "Live Green, Live Better."

2019年北京国际园艺博览会的主题是“绿色生活，美丽家园”。

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Michelle wore Narciso Rodriguez again at the town hall debate in Nashville, this time with a subtle Christmas theme, pairing sparkly green bows with the perfectly hued garnet shift.

在纳什维尔一次市政厅辩论上，米歇尔再一次身着Narciso Rodriguez的裙子亮相。这次的她选择了圣诞色，闪亮的绿色项链和完美的石榴红裙子。

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Despite their diverse backgrounds, protesters - many dressed in green to show solidarity with Iran's opposition movement voiced a common theme of solidarity with the people of Iran.

VOA: standard.2009.07.25

Husband-and-wife team Nick and Simone Monu -- of fashion label Monu and Monu -- took up the green theme in their designs, incorporating carrier bags, bin liners, and even one of their daughter's old toys.

CNN: Green is this season's color at Nigeria Fashion Week

With a closing announcement of "When we talk about a green theme, we walk the walk and talk the talk, " the guests were urged to go home and plant the wildflower seeds embedded in their seating cards.

FORBES: Dinner With The Green Glitterati

Presentation in the context of the World Science Day for Peace and Development: theme Towards Green Societies: equity, inclusiveness, participation.

UNESCO: NATURAL SCIENCES