问一个难句的解释。。。

freesaUID: 2225142

adaption is that of tadpolelike appendicularian.

   这是那个难句的主干，我想问一下，that of这里怎么解释呢？

DendisUID: 158017

以后问难句或题目的话建议大家把全句贴上来，否则别人很难回答，谢谢

freesaUID: 2225142

(A very specialized feeding) adaptation (in zooplankton) is that of the tadpolelike appendicularian {who lives in a walnut – sized (or smaller) balloon of mucus [equipped with filters (that capture and concentrate phytoplankton)]}.

明白了，一种在浮游动物中非常特殊的用来捕食的适应就是TA这种动物的适应。。。

that是指adaptation啊，从特殊到一般的句式。。。记下了。。。

elftutorUID: 2185467

"That" means adaptation,namely, a very specialized feeding adaptation.
Nourish, cultivate and exploit your sense of the language, never dig into grammatical cul-de-sac too much

freesaUID: 2225142

of courese, but you know, sometimes you can understand some sentence if only when you get well known about its structure. before you can control a language precisely, you should understand a sentence precisely. that is the necessary condition, at least for me, of our final purpose.