英语语法分析

The projections are called papillae.

这些突起的结构叫做“papillae”。

If it wants to have a smooth texture, it flattens out the papillae, so it can acquire a smooth texture to blend in with the sandy bottom of the sea.

如果它想要纹理光滑一些，它就把身上的“触头”变得平整，这样它看上去就会很光滑，能够融入海底的沙地中。

Aubrey: Little bumps called papillae.

奥布里：这些小疙瘩叫乳突。