burst upon的音標是[b??rst ??mp] ，基本翻譯是突然出現；突然發生。速記技巧是利用發音與字母組合的諧音記憶技巧來記憶單詞。

Burst upon的英文詞源是：burst，表示突然發生或出現，upon表示在…上。

burst upon的詞形變化為burst in。相關單詞有：burst，意為突然發生；crash，意為撞擊；epidemic，意為流行病；explode，意為爆炸；burst out，意為突然發生；burst into，意為突然進入。

burst upon的用法通常是表示某事突然出現或發生，給人一種驚喜或震驚的感覺。例如：“The news burst upon us with great impact.”（這個消息突然傳來，給我們帶來了很大的沖擊。）

以上是對burst upon的英文詞源、變化形式和相關單詞的解釋，希望對你有所幫助。

常用短語：

1. burst into laughter

2. burst into tears

3. burst with excitement

4. burst with pride

5. burst with joy

6. burst forth

7. burst the dam

例句：

1. When he heard the news, he burst into tears.

2. She burst into laughter when she saw her friend"s funny face.

3. After weeks of hard work, he burst with pride when he saw his completed project.

4. When he received the award, he burst with joy.

5. The music suddenly burst forth, filling the room with energy and excitement.

6. The dam burst and the floods washed away everything in their path.

7. The storm burst and the rain poured down for hours.

英文小作文：

Bursting with happiness

Life is full of moments that fill us with joy and happiness. Whether it"s a beautiful sunset, a warm embrace from a loved one, or a sudden burst of music, these moments make us feel alive and full of energy.

For me, one of the best moments was when I finally achieved my goal and completed a long-term project. I felt a sense of pride and accomplishment that filled me up with joy and excitement. It was a moment that I will never forget, and it was a testament to the hard work and dedication I had put into achieving my goal.

These moments are what make life worth living. They give us a reason to keep going and to keep striving for our dreams. So, whenever you feel your spirits flagging or your mood dipping, remember to look for those moments of happiness and joy that will burst forth in your life, and remember to share them with those you love.