arachnids的音標為[??r?kn?dz]，基本翻譯為“蛛形綱動物”，速記技巧為“arachn（蜘蛛）”+“ids”（表示復數）。

Arachnids是一個英語單詞，意思是蛛形綱動物，包括蜘蛛、蝎子、螨蟲等。這個詞的詞源可以追溯到拉丁語中的“arachne”，意為“蜘蛛網”，加上“-id”后綴，構成了這個單詞。

變化形式：復數形式為arachnids，過去式為arachnid，現在分詞為arachnids。

相關單詞：

1. spider：蜘蛛，這個詞直接來源于拉丁語中的“spidere”，意為“蜘蛛網”。

2. scorpion：蝎子，這個詞來源于希臘語中的“skorpio”，意為“蝎子”。

3. mites：螨蟲，這個詞來源于拉丁語中的“mytilus”，意為“蠕蟲”，而蠕蟲和螨蟲在形態和行為上有很多相似之處。

4. arachnophobia：蜘蛛恐懼癥，這個詞由“arachnid”和“phobia”構成，表示對蜘蛛的恐懼。

5. arachnology：蛛形學，這是一個學科名稱，研究蛛形綱動物。

6. Araneus：蜘蛛屬名，來源于拉丁語中的“aranea”，意為“蜘蛛”。

7. Araneidae：蜘蛛科名，這個科是蛛形綱動物中最大的一個科之一。

8. Araneomorphus：變形蛛屬名，這個詞由“araneus”和“morphus”構成，表示變形蜘蛛。

9. Araneofera：蛛網空間，這是一個用來描述蜘蛛和蛛形綱其他動物生活環境的術語。

10. Araneinsects：蛛形昆蟲，這是一個集合名詞，泛指所有蛛形綱動物中的昆蟲類。

以上這些單詞都與arachnids有著密切的聯系，并且反映了蛛形綱動物在生物學和語言學上的重要性和多樣性。

Arachnids常用短語：

1. arachnid-like 類似蜘蛛的

2. arachnophobia 蜘蛛恐懼癥

3. arachnoid 蛛網膜的

4. arachnoiditis 蛛網膜炎

5. arachnosphere 蛛網殼層

6. arachnothryx 蜘蛛頭飾

7. arachnotrichia 蜘蛛密集

例句：

1. The arachnid-like creature scurried away at the sound of the door opening.

2. I have a mild arachnophobia and avoid spiders at all costs.

3. The arachnoid membrane is a delicate network of fibers that covers the brain and spinal cord.

4. The patient"s arachnoiditis was caused by a prolonged infection.

5. The arachnsphere is a complex network of interconnected spaces in the brain.

6. The arachnothryx is a decorative element that resembles a spider"s web.

7. The arachnotrichia refers to the dense clustering of spiders in certain areas.

英文小作文：

Arachnids are fascinating creatures that have captivated human imagination for centuries. They are often associated with mystery and terror, but their intricate webs and stealthy movements are also beautiful and mysterious in their own way. Arachnids play an essential role in many ecosystems, providing food for other species and maintaining the balance of nature.

Despite their sometimes fearsome appearance, arachnids are surprisingly adaptable and resilient creatures that have survived for millions of years. Their ability to adapt to diverse environments and thrive in challenging conditions is a testament to their adaptability and tenacity. Arachnids are fascinating creatures that deserve more recognition and respect for the important role they play in our world.