good-bye的音標是[ɡ?d ba?]，基本意思是“再見，再會”。速記技巧是可以在by前加一個輔音字母b，簡化記憶。

good-bye這個詞的詞源可以追溯到古英語，它由“good”和“bye”兩個部分組成。“Good”表示“好的，善的”，而“bye”則表示“再見”。good-bye這個詞在口語中廣泛使用，表示告別或再見。

變化形式：在詞形上，good-bye沒有明顯的變化。

相關單詞：

1. bye-bye：這是一個常用的俚語，表示再見或告別。它是由good-bye演變而來，增加了兒語色彩。

2. adieu：法語單詞，意為“再見”，詞源與good-bye相似。

3. au revoir：在法語中，意為“再見”，這個詞是由“revoir”（再次見到）一詞演變而來。

4. see you later：這是一個常用的口語表達，表示一會兒見。它是由see you和later兩個詞組合而成。

5. farewell：英語單詞，意為“告別，再會”，來源于拉丁語farewell（愿你安好）。

6. good-luck：由good-bye演變而來，表示祝你好運。

7. adios：西班牙語單詞，意為“再見”，來源于拉丁語。

8. hasta luego：墨西哥等拉美地區的常用語，意為“一會兒見”。

9. ciao：意大利語的再見，源自拉丁語。

10. good-night：這個詞是由good和night兩個詞組合而成，表示晚安。

這些相關單詞描述了不同語言和語境中再見的表達方式，也展示了語言演變的過程。

常用短語：

1. goodbye in advance 提前告別

2. good-by visit 告別拜訪

3. good-bye letter 告別信

4. good-bye kiss 告別吻

5. good-bye call 告別電話

6. good-bye note 告別便條

7. good-bye hug 告別擁抱

雙語例句：

1. I said goodbye to my friends before leaving for vacation. （我離開前向朋友們道了別。）

2. She gave me a good-bye hug and wished me a safe journey. （她給了我一個擁抱，祝福我旅途平安。）

3. My family and I said goodbye to our friends after a wonderful vacation. （我和家人度過了一個美好的假期后向朋友們道了別。）

4. I wrote a good-bye letter to my family before going to college. （我上大學前寫了一封告別信給家人。）

5. After saying goodbye to everyone, I boarded the plane for my journey home. （告別所有人后，我登上了回家的飛機。）

6. My teacher gave me a good-bye call to wish me luck on my exams. （老師給我打了個告別電話，祝我考試順利。）

7. I had a wonderful time with my family during the holidays, but now it"s time to say goodbye. （假期和家人在一起過得很愉快，但是現在是時候說再見了。）

英文小作文：

Goodbyes are sad, but necessary moments in life. We say goodbye to old friends, move to new places, and eventually, we all leave this world. However, goodbyes can also be beautiful moments of celebration and gratitude for the time we had together.

When I say goodbye to someone I love, I try to make it as special as possible by showing them how much they mean to me. I may give them a gift, or take them out for a meal, or simply spend time together doing the things they enjoy. By doing these things, I can make the moment more meaningful and memorable for both of us.

On the other hand, goodbyes can also be sad moments when we have to say farewell to those we have lost or are leaving this world forever. In these cases, it"s important to remember the good times we had together and to express our gratitude for their life and impact on our own.

No matter what the situation, goodbyes are a part of life that we cannot avoid. However, by remembering the moments that matter and expressing our emotions honestly, we can make them more positive and beautiful experiences that we can cherish forever.