fell under的音標是[fel v d]，基本翻譯是“陷入；服從；屈服于”。速記技巧是注意字母f和d的發音。

fell 的英文詞源可以追溯到古英語中表示“砍伐”的詞匯。它的變化形式包括過去式 fell、過去分詞 fallen 和現在分詞 falling。

相關單詞：

1. failure：失敗，源自 fell，表示砍伐，而失敗則意味著砍伐樹木時未能成功。

2. felloe：劈成兩半，源自 fell，表示砍伐樹木后將其劈成兩半。

3. fellmonger：劈柴商，源自 fell，表示砍伐樹木的人，而商人則被用來描述從事這種職業的人。

4. fellwight：伐木工人，源自 fell，表示砍伐樹木的人，而 wight 意為“人”。

5. felloeing：劈成兩半的行為，源自 felloe，表示將樹木劈成兩半。

6. fell-leaping：跳過樹木的砍伐者，源自 fell，表示砍伐樹木的人，而 leaping 則表示跳躍。

7. fell-chase：追逐砍伐者，源自 fell，表示追逐那些砍伐樹木的人。

8. fell-squire：砍伐者，源自 fell，表示砍伐樹木的人，而 squire 意為“侍從”。

9. fell-dogging：追蹤砍伐者，源自 fell-dogging，表示追蹤那些砍伐樹木的人。

10. fell-hunting：獵殺砍伐者，源自 fell-hunting，表示追逐并獵殺那些砍伐樹木的人。

fell 的這些相關單詞生動地描繪了砍伐樹木這一行為的不同方面，同時也反映了人類與自然環境之間的互動關系。

常用短語：

1. fall in love with

2. fall apart

3. fall behind

4. fall off

5. fall into

6. fall out with

7. fall asleep

例句：

1. I fell in love with her at first sight. 我一見鐘情。

2. The news fell her apart. 她聽到這個消息后心碎了。

3. I fell behind with my studies and couldn"t catch up. 我學習落后了，沒能趕上。

4. The car fell off the bridge. 汽車從橋上掉了下來。

5. He fell into debt and couldn"t get out of it. 他欠了債，無法脫身。

6. They fell out with their neighbours over a trivial matter. 因為一件小事，他們和鄰居鬧翻了。

7. She fell asleep after a long day of work. 經過一整天的工作，她睡著了。

英文小作文：

I remember the first time I fell under someone"s spell, it was a magical moment. I was young and innocent, and he was everything I dreamed of, charming, witty, and kind. We shared a special bond that transcended time and space, and I felt safe and secure in his embrace. He taught me about love, about life, and about the beauty of the world around us. But as time passed, our relationship began to fall apart, and I found myself lost and confused. It was then that I realized that falling under someone"s spell is not always a happy ending, but a journey filled with ups and downs, tears and laughter, joy and sorrow. Nevertheless, I learned to cherish every moment, every experience, and every person that brought me under their spell, for they taught me about love, about life, and about the beauty of the human spirit.