脑珊瑚里的圣诞树管虫。

Christmas tree worms on brain coral.

youdao

哈佛大学安德鲁•脑尔博士认为，最危险的物种是珊瑚。

According to Andrew Knoll, of Harvard University, many of the species most at risk are corals.

youdao

哈佛大学安德鲁•脑尔博士认为，最危险的物种是珊瑚。

According to Andrew Knoll, of Harvard University, many of the species most at risk are corals.

youdao