burst out的音標為：[b??rst a?t] ，基本翻譯為“突然發生；爆發；突然說出”，速記技巧為：burst（突然）＋out（出來）＝突然發生。

Burst out這個詞的詞源可以追溯到古英語單詞“burstian”或者“burstianes”，意思是突然爆發或者突然出現。它的變化形式包括過去式“bursted”和“burst”，現在分詞“bursting”等。

相關單詞：

1. "Burst"：這個單詞本身就是一個常用的英語單詞，意思是突然破裂或者突然爆發。

2. "Outburst"：這個單詞通常用來形容突然的情緒爆發或者行為爆發，例如“an outburst of anger”。

3. "Eruption"：這個單詞通常用來形容火山或者其他自然現象的突然爆發，例如“an eruption of lava”。

4. "Explosion"：這個單詞通常用來形容爆炸或者爆炸性的行為，例如“an explosion of gunfire”。

5. "Bursting"：這個形容詞形式用來形容物體或者情感的狀態，例如“a bursting smile”。

6. "Bursting forth"：這個短語用來形容突然出現或者突然涌現，例如“The sun bursting forth in all its glory”。

7. "Bursting into laughter"：這個短語用來形容突然爆發的笑聲。

8. "Bursting with joy"：這個短語用來形容充滿喜悅的狀態。

9. "Bursting with life"：這個短語用來形容充滿活力的狀態。

10. "Bursting with hope"：這個短語用來形容充滿希望的狀態。

以上這些單詞和短語都與burst out這個詞源有密切的聯系，都表示突然出現、爆發或者破裂的意思。

burst out短語：

1. burst out laughing/crying 突然笑/哭出來

例句：She burst out laughing at his joke.

2. burst out talking/singing 突然說出/唱出來

例句：He burst out singing at the party.

3. burst out with 表達…

例句：She burst out with her anger.

4. burst into 突然進入

例句：The fire brigade burst into the room.

5. burst forth 突然出現

例句：Spring burst forth all over the country.

6. burst one"s breath 喘不過氣來

例句：Running for the bus, I burst my breath.

7. burst one"s限度和能力

例句：He burst his weight limit and couldn"t be lifted anymore.

英文小作文：

Today I was so excited to see a beautiful sunrise, the sun burst forth from behind the mountains, casting a golden light over the land. As I watched, it seemed as if the whole world had come alive, birds chirping, flowers blooming, and even the trees seemed to dance in the gentle breeze. It was a moment I will never forget, and I hope to experience it again someday.