all of sudden

all of sudden的音标是[ɔːl vəʊ fʊ sɪnd]，基本翻译是“突然地”，速记技巧可以是利用词根记忆，all表示全部，of表示的，sudden表示突然的。

All of sudden这个词的词源可以追溯到古英语，它由“all”和“of”两个词组成，而“sudden”则来自“sud”这个词根，意为“突然的”。

它的变化形式包括其过去式“suddenly”和过去分词“suddenly”，这些形式在英语中都保持了原词根的含义，即表示“突然地”。

相关单词有“quickly”、“rapidly”、“instantly”、“speedily”、“breathlessly”、“hastily”、“immediately”、“momentarily”和“unexpectedly”。这些单词都与“突然”有关，因为它们都表示快速或出乎意料的行为或事件。这些单词可以用来描述行为或事件发生得非常快或出乎意料，给人一种突然的感觉。

例如，“quickly”意为迅速地，可以用来描述一个动作或事件发生得非常快；“unexpectedly”意为出乎意料地，可以用来描述一个事件或行动让人感到意外。这些单词都强调了突然的特点，因此它们可以与“all of sudden”一起使用来描述一个突然发生的事件或行动。

常用短语：

1. all of a sudden

2. out of the blue

3. unexpectedly

4. in a flash

5. abruptly

6. suddenly

7. in a twinkling

例句：

1. All of sudden，the doorbell rang.

2. He appeared all of a sudden and startled me.

3. She burst into tears all of unexpectedly.

4. An idea suddenly came to my mind.

5. The car braked abruptly，narrowly missing the cyclist.

6. The rain came all of in a flash.

7. I felt a twinkling of happiness all of sudden.

英文小作文：

All of sudden，I realized that life is full of surprises. Sometimes it"s a beautiful sunrise，sometimes it"s a heartwarming smile from a stranger，and sometimes it"s even a challenge that pushes me to my limits. But no matter what，I"ve learned to embrace these moments of all of sudden，because they make me stronger and more resilient. I"ve learned to trust in the unpredictable nature of life，and to appreciate every moment，no matter how small or insignificant it may seem at the time. Because it could all of sudden，be something incredible.