fungicidal的音標是[?f?nd???sa?l??]，基本翻譯是殺菌的，速記技巧是“fung=真菌，icidal=殺的”表示殺真菌的。

Fungicidal這個詞的詞源可以追溯到拉丁語“fungus”和“cidere”，意為“殺死真菌”。這個詞在英語中的形式變化相對較少，主要涉及到復數形式和動詞形式的變化。

相關單詞：

1. Fungus - 真菌，一種微生物，廣泛存在于自然界中。

2. Mycelium - 真菌的菌絲體，由許多細絲組成，是真菌進行營養和繁殖的主要部分。

3. Fungicide - 殺菌劑，一種用于殺死或抑制真菌生長的化學物質或方法。

4. Antifungal - 抗真菌的，指具有抑制或殺死真菌作用的物質或藥物。

5. Fungistatic - 殺真菌的，指具有抑制或殺死真菌但不使其完全消失的物質或方法。

6. Fungus-resistant - 抗真菌的，指生物體對真菌有抵抗力的特性。

7. Fungus-killing - 殺真菌的，指具有殺死真菌作用的物質或方法。

8. Fungus-killing rate - 殺真菌效率，指殺真菌物質或方法對真菌的殺滅程度。

9. Fungus-proof - 防真菌的，指通過物理、化學或生物方法使物體或環境不受真菌侵害的狀態。

10. Fungus-resistant crop - 抗真菌作物，指對真菌有抵抗力的作物品種。

以上這些單詞都與Fungicidal這個詞有著密切的聯系，涵蓋了真菌的各個方面，包括其存在、繁殖、對人類和環境的影響以及如何防治等。

常用短語：

1. fungicide spray

2. preventative fungicide

3. systemic fungicide

4. topical fungicide

5. biocide and fungicide mixture

6. organic fungicide

7. water-soluble fungicide

例句：

1. Spraying with a fungicide can help control fungal infections in plants.

2. Using a systemic fungicide can help treat fungal infections deep within the plant tissue.

3. Topical fungicide applied to the soil can help prevent fungal infections in plants.

4. A biocide and fungicide mixture can be used to effectively treat fungal infections in a variety of environments.

5. Organic fungicides are becoming increasingly popular due to their environmental friendliness and effectiveness.

6. Water-soluble fungicides are easy to apply and can be used in a variety of ways to effectively treat fungal infections.

英文小作文：

Protecting Plants from Fungus Infections

Fungi are a common threat to plants, causing various diseases and infections that can have negative impacts on plant growth and yield. To protect plants from fungal infections, various methods can be used, including using fungicides to spray plants, using systemic fungicides that can reach deep within the plant tissue, applying topical fungicides to the soil, using a biocide and fungicide mixture, using organic fungicides, and using water-soluble fungicides that are easy to apply. By using these methods, plants can be protected from fungal infections and grow healthily in various environments.