in class的音標是[?n kɑ?s]，基本翻譯是在課堂上，速記技巧可以是：使用符號、縮寫、首字母簡寫等快速記錄課堂內容。

在英語中，有很多單詞的詞源可以追溯到不同的歷史時期和文化背景。以下是一些英文詞源的變化形式及相關單詞的示例：

1. 詞源：拉丁語

變化形式：-tion（名詞后綴）

相關單詞：

creation：創造（由create派生而來，表示“產生、創造”）

invention：發明（由invent派生而來，表示“想出、創造”）

institution：制度（由institute派生而來，表示“制定、設立”）

2. 詞源：古英語

變化形式：-fell（名詞后綴）

相關單詞：

hillside：山腰（來自hill的名詞形式，表示“山的一側”）

valley floor：山谷平地（來自valley的名詞形式，表示“山谷”）

beach shore：海灘（來自beach的名詞形式，表示“沙灘”）

3. 詞源：希臘語

變化形式：-graphy（名詞后綴）

相關單詞：

literature：文學（由literatus派生而來，表示“寫作、記錄”）

rhetoric：修辭學（由rhetor派生而來，表示“演說技巧”）

philosophy：哲學（由philosopher派生而來，表示“熱愛智慧的人”）

4. 詞源：古法語

變化形式：-ance（名詞后綴）

相關單詞：

appearance：外觀（由appear派生而來，表示“出現、外表”）

relation：關系（由relate派生而來，表示“描述、關聯”）

movement：運動（由move派生而來，表示“移動”）

5. 詞源：日耳曼語

變化形式：-th（名詞、形容詞后綴）

相關單詞：

growth：生長（由grow派生而來，表示“生長、成長”）

healthy：健康的（由health派生而來，表示“健康、健全”）

knowledge：知識（由know派生而來，表示“知道、理解”）

以上是一些英文詞源的變化形式及其相關單詞的示例。這些詞源和變化形式反映了英語的發展歷史和文化背景，有助于我們更好地理解和使用英語。

常用短語：

1. in class

2. at the same time

3. all over the world

4. get along well with

5. keep up with

6. come up with

7. take part in

8. break away from

例句：

1. We should listen to the teacher in class and pay attention to what he/she says. (我們在課堂上應該聽老師講課，注意他/她所說的內容。)

2. She always gets along well with her classmates and helps them when they have difficulties. (她總是與同學們相處得很好，當他們有困難時，她會幫助他們。)

3. We should try to keep up with the latest trends in technology to stay competitive in today"s world. (我們應該努力跟上科技發展的最新趨勢，以便在當今世界保持競爭力。)

4. He came up with an innovative solution to the problem of pollution in our city. (他提出了一項創新的解決方案，來解決我們城市的污染問題。)

5. We should take part in various activities to improve our skills and knowledge. (我們應該參加各種活動來提高我們的技能和知識。)

6. We must break away from our old ways of thinking and embrace new ones to succeed in this new era. (我們必須擺脫舊的思想方式，接受新的方式，才能在新的時代取得成功。)

英文小作文：

In class, we learn not only knowledge but also skills that help us adapt to the changing world. Whether it"s listening to a lecture, participating in discussions, or working together on projects, class time is full of opportunities to grow and learn. However, it"s not just what we learn in class that matters, but also how we interact with others and develop our social skills. Classroom learning is only one part of education, and it"s essential to develop our interpersonal skills outside of the classroom as well.

Throughout my life, I"ve found that learning is a continuous process that never stops. Whether it"s reading a book, taking a class, or simply observing others, I"ve learned that there"s always something new to learn and experience. In today"s fast-paced world, it"s even more important to stay up-to-date with new trends and technologies to stay competitive.

By staying in school and continuing to learn, we can develop our skills and knowledge, but we can also make new friends and form lasting relationships that will last a lifetime. Learning is a valuable gift that we can give ourselves by staying curious and open to new experiences. Let"s embrace the opportunity to learn and grow together in class and beyond!