Coral barnacles are, in fact, related to lobsters.塔藤壶其实是龙虾的亲戚

in fact其实； 事实上；实际上

I quite agree with you; in fact you took the words out of my mouth.

我完全同意你所说的; 实际上，你说了我想说的话。

relate to有关； 涉及

Some adults can't relate to children.

有些成年人不理解儿童的想法。

Children need to learn to relate to other children.

孩子们应该学会与其他孩子友好相处。

A boxer crab attaches a tiny sea anemone to each fist.拳师蟹的双螯各抓着一只细小海葵

attach to附在 ... 上； 系在 ... 上

I'll attach my comments to this page.

我将把我的评语附在这页上。

He'll attach the label to your luggage.

他会把标签系在你的行李上。

As well as for defence,he uses their sticky tentacles to gather passing plankton.除了作为防卫，它也用海葵的黏性触手收集路过的浮游生物

as well as和…一样；不但…而且（谓语与第一主语一致）

A teacher should entertain as well as teach.

教师不仅要教书，也要激起学生的兴趣。

I'm learning French as well as English.

我学英语之外还学法语。

This orangutan crab's whole body is coated with sticky hairs,这只红毛猩猩蟹，全身长满黏性细毛

coated with涂上；覆盖；包上

Pills coated with sugar are easier to eat.

外包糖衣的药片较容易吃下去。

The pond is coated with thin ice.

池塘上结了一层薄冰。