alephnull

alephnull的音标是[ˈæleɪθnʊl]。基本翻译是“阿列夫零”，它是一个数学符号，表示无穷大。速记技巧是使用首字母“al”来快速记忆这个符号。

Aleph-null的英文词源可以追溯到古希伯来语中的数字符号“aleph”和“ayin”，表示“1”和“0”。在英语中，它通常被翻译为“无”或“零”。

变化形式：

1. Null（零） - 这是Aleph-null最常见的形式，表示数字或数值为零。

2. Nill（无） - 这个形式通常用于表示法律上的无效或不存在。

相关单词：

1. Nullify - 意为“使无效”，例如：“The contract was nullified after it was found to be fraudulent.”（合同因被发现是欺诈行为而无效。）

2. Nullity - 意为“无效性”，例如：“The court ruled that the contract was of no legal validity.”（法院裁定该合同不具备法律有效性。）

3. Nought - 意为“零”，通常用于表示数量或金额为零。

4. Void - 意为“无效的”，例如：“The registration was declared void due to technical errors.”（由于技术错误，该登记被宣布无效。）

5. Zero - 意为“零”，通常用于表示数值为零。

6. Non-null - 意为“非零的”，用于表示与零相对的概念。

7. Nullity of numbers - 意为“数字的无效性”，数学术语。

8. Null set - 数学术语，表示空集，与非空集合相对。

9. Null hypothesis - 统计学中的术语，表示一个假设或前提，需要被证实或证伪。

10. Null space - 数学术语，表示一个向量空间中与零集合等价的子空间。

常用短语：

1. at the beginning of

2. after a while

3. in the middle of

4. at the end of

5. in front of

6. behind

7. next to

双语例句：

1. She arrived at the beginning of the school term. （她开学初到达。）

2. After a while, she fell into a deep sleep. （过了一会儿，她陷入了深度睡眠。）

3. I was sitting in the middle of the room when I heard a knock at the door. （当我听到敲门声时，我正坐在房间中间。）

4. At the end of the day, we all gathered around the fire to sing songs and tell stories. （一天结束时，我们围在火堆旁唱歌和讲故事。）

5. There was a car parked in front of my house. （我家门前停了一辆车。）

6. I couldn"t see anyone behind me in the queue. （队伍中我后面没有人。）

7. The bookcase is next to the door. （书柜紧挨着门。）

英文小作文：

Title: The Beginning of a New Year

The new year is upon us, and with it comes a fresh start and endless possibilities. We can clear our minds of the past and focus on what"s ahead, ready to embrace new opportunities and challenges.

At the beginning of a new year, we often reflect on our past mistakes and successes, and use this time to learn from our experiences and grow stronger. We set goals and aim to achieve them, knowing that with hard work and dedication, anything is possible.

However, the new year is not just about achieving our goals, it"s also about taking time to appreciate the small moments in life that often go unnoticed. Whether it"s taking a walk in the park, spending time with family and friends, or simply relaxing by the fire, these moments add up and make the new year even more enjoyable.

In conclusion, the beginning of a new year is a time for renewal, growth, and happiness. It"s a time to focus on what"s ahead and seize every opportunity that comes our way, while also taking time to appreciate the small moments that make life worth living.