Filthy的音標是[?f?lθi]，基本翻譯是“臟的；下流的；不整潔的”，速記技巧是“fil(l)（臟）+thy（形容詞后綴）”。

Filthy這個詞的英文詞源可以追溯到拉丁語詞匯“pellitus”，意思是“臟的，污穢的”。它的變化形式包括其過去式“filthied”和過去分詞“filthied”，現在分詞“filthy”以及形容詞形式“filthy”。

相關單詞：

1. “Garbage” - 這個詞和“filthy”有著密切的關系，它的詞源可以追溯到古英語“garb”和“heah”，意思是“垃圾，廢物”。這個詞現在通常用來指任何不需要或無用的東西。

2. “Litter” - 這個詞也和“filthy”有關，它的詞源可以追溯到古英語“litter”和“h?pp”，意思是“散亂的，散布的”。這個詞現在通常用來指垃圾或雜物。

3. “Unclean” - 這個詞來源于拉丁語詞匯“pellitus”，意思是“不干凈的，污穢的”。這個詞現在通常用來指那些不符合衛生標準或道德標準的人或事物。

以上這些單詞都與“filthy”有著密切的聯系，它們都表示那些不干凈、骯臟或不衛生的事物或狀態。這些單詞在英語中廣泛使用，并被用來描述各種不同的對象和情境。它們也反映了人類對清潔和衛生的重視，以及我們對不衛生或不健康事物的厭惡和反感。

常用短語：

1. filthy lucre

2. in one"s filthy little heart

3. dirty money

4. stinkin" rich

5. dirt poor

6. dirt bag

7. filthy rich

例句：

1. He has filthy lucre and a dirty mind.

2. She"s always trying to hide her dirty money from her family.

3. He"s stinkin" rich, but he doesn"t appreciate what he has.

4. They live in a dirt poor area and struggle to make ends meet.

5. He"s a filthy bag of selfishness and arrogance.

6. He"s filthy rich, but he doesn"t share his wealth with others.

7. The rich and poor coexist in this city, but the gap between them is getting wider and wider.

英文小作文：

Life is full of ups and downs, and the gap between the rich and the poor is getting bigger and bigger. Although we can"t change the situation overnight, we can try to make a difference by helping those who are less fortunate than us. We can donate money or time to charitable organizations, volunteer to help the homeless, or simply lend a helping hand to those who are in need of our support. By doing so, we can make a small contribution to reducing the gap between the rich and the poor, and create a more equal society where everyone can live a better life.