她正在调查改变海水的酸性和温度对叫紫海胆的这一生物的影响。
She is investigating the effects of changing acidity and temperature in the sea on a creature called the purple sea urchin.
那玫粉、殷红、炫紫的日光使得云朵充满色彩和美丽，栩栩如生。金色的太阳从山边缓缓升起，预示着欢乐的到来。
The pink, red and purple made the clouds come alive with colour and beauty. The golden sun coming over the mountains indicated that great joys were coming.
一种产于美洲的紫露草属草本植物， 尤指弗吉尼亚紫露草，生有三瓣的蓝色或紫色花朵和六个毛状雄蕊。
Any of various New World herbs of the genus Tradescantia, especially T. virginiana, having three-petaled blue or purple flowers with six hairy stamens.
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