We saw the dolphins rubbing themselves on a special coral called gorgonian coral.

我们看到海豚在一种叫做蛇颈珊瑚的特殊珊瑚上摩擦身体。

And we know from previous studies that the gorgonian corals have this mucous layer which has antibacterial and antifungal properties.

我们从以前的研究中得知，蛇颈珊瑚有一种具有抗菌和抗真菌特性的黏液层。