For instance, sea lilies, marine animals with feathery arms, date back more than 400 million years.
举例来说，有羽状触手的海洋动物海百合，就可追溯到4亿多年前。
A gossamer parasol spreads its feathery arms to catch plankton in the Caribbean waters of the Cayman Islands.
一把轻飘飘的阳伞伸展其生有羽毛的桥臂捕捉浮游生物在加勒比海域的开曼群岛。
A gossamer parasol spreads its feathery arms to catch plankton in the Caribbean waters of the Cayman Islands.
一把轻飘飘的阳伞伸展其生有羽毛的桥臂捕捉浮游生物在加勒比海域的开曼群岛。
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