crinoids

crinoids的读音是[ˈkrɪnɪəʊdz]，音标为[krɪˈnoʊdz]。基本翻译是“羊齿植物”，速记技巧可以是：crin-o-ids（谐音“吃肉的你”）代表羊齿植物，因为它们是食肉的。

Crinoidea是一个生物分类群，属于刺胞动物门，水螅虫纲，珊瑚目。其英文词源可能来自于希腊语中的“crinon”（发丝）和“idea”（观念，想法），因为它们的触手像发丝一样细长。

变化形式：复数形式为crinoidea，过去式为crinoided或crinoidated，现在分词为crinoidea。

相关单词：

1. Echinoderms - 棘皮动物：这个单词和crinoids一样都属于刺胞动物门，但是属于另一纲别。

2. Medusa - 美杜莎：在希腊神话中，美杜莎是蛇发女妖，其形象可能来源于crinoids的触手。

3. Hydra - 海蛇：这个名字来源于希腊语中的“hydras”，指的是crinoids的复数形式，同时也指海蛇这种动物。

4. Crinoid-crinoidage - 石炭纪：这个单词指的是石炭纪时期，当时crinoids非常繁盛。

5. Crinoidean - crinoidal - 这些词缀表示与crinoids相关的，如crinoidate（使成杯状）和crinoidite（杯状物）。

6. Crinoid-like - 类似crinoids的：这个词用来描述与crinoids形态相似的生物或物体。

7. Crinoidea-like - 类似crinoidea的：这个词用来描述与crinoidea这一生物分类群相似的生物或物体。

8. Crinoidea-derived - 从crinoidea衍生出来的：这个词用来描述与crinoidea这一生物分类群相关的概念或物体。

9. Crinoidea-related - 与crinoidea相关的：这个词用来描述与crinoidea这一生物分类群有关系的生物或物体。

10. Crinoidea-derived organism - 从crinoidea衍生出来的生物体：这个词用来描述由crinoidea这一生物分类群衍生出来的生物体。

常用短语：

1. crinoid arms - 像水母一样的触手

2. crinoid column - 水母一样的柱状物

3. crinoid stipe - 水母一样的茎

4. crinoid tentacles - 水母一样的触须

5. crinoid feathers - 水母一样的羽毛状物

6. crinoid fronds - 水母一样的叶子状物

7. crinoid spikes - 水母一样的尖刺状物

例句：

1. The ocean floor was covered with a carpet of crinoid arms.

2. The crinoid column swayed gently in the current.

3. The creature"s crinoid tentacles were stretched out in search of prey.

4. The delicate crinoid feathers were swept up by the wind.

5. The crinoid stipe was a remnant of an ancient marine life form.

6. The crinoid spikes were sharp and could easily puncture the skin.

7. The crinoid was a common sight in the shallow waters of the coastline.

英文小作文：

Crinoids: An Ancient Marine Life Form

Crinoids, also known as marine jellyfish, are an ancient group of marine animals that have survived through the ages. These delicate creatures have been found in the fossil record dating back millions of years, and they still exist today in some parts of the world"s oceans.

Their distinctive appearance is characterized by long, thin arms that sway gracefully in the water, and a central column that supports them. Some species have tentacles that can extend far beyond the arms, giving them a menacing appearance when they are encountered underwater.

Crinoids are an interesting reminder of the past, and they serve as a reminder of the adaptability of life to even the harshest environments. Despite their delicate appearance, they have survived and thrived in the oceans for millions of years, proving that nature is full of surprises and wonders.