Here are a few description options for a WordPress post tag titled “合數” (Héshù, meaning “Composite Number” in Traditional Chinese), ranging in length and complexity:

**Option 1: Concise and Clear**

* **Description:** 學習數學中的合數 (Héshù): 能被 1 和它本身以外的數整除的數。 (Learn about composite numbers in mathematics: Numbers divisible by numbers other than 1 and themselves.)

**Option 2: Slightly More Detail**

* **Description:** 合數 (Héshù) 指的是可以分解成兩個或多個小於它的數的乘積的整數。與質數 (素數) 相反。在這個標籤下，你將找到關於合數的定義、例子、以及相關的數學知識。 (Composite numbers are integers that can be factored into the product of two or more numbers smaller than themselves. Opposite of prime numbers. Under this tag, you’ll find definitions, examples, and related mathematical knowledge about composite numbers.)

**Option 3: Focused on Educational Content**

* **Description:** 在這篇文章的標籤下，探索合數 (Héshù) 的世界！你會學到什麼是合數，如何判斷一個數是否為合數，以及合數在數學中的重要性。適合學生、老師，或是對數字世界有熱情的人。 (Explore the world of composite numbers (Héshù) under this tag! You’ll learn what a composite number is, how to determine if a number is composite, and the importance of composite numbers in mathematics. Suitable for students, teachers, or anyone passionate about the world of numbers.)

**Option 4: Short and Sweet**

* **Description:** 了解合數 (Héshù) 的基本概念和特性。 (Learn the basic concepts and properties of composite numbers (Héshù).)

**Option 5: Advanced and Informative**

* **Description:** 深入探討合數 (Héshù)。本標籤涵蓋合數的定義、分解方法、與質數 (素數) 的關係，以及合數在密碼學、計算機科學等領域的應用。探索深入的數學知識，例如合數的數量分佈、以及相關的數論問題。 (Delve into composite numbers (Héshù). This tag covers the definition of composite numbers, factorization methods, relationships with prime numbers, and applications of composite numbers in fields like cryptography and computer science. Explore advanced mathematical knowledge, such as the distribution of composite numbers and related number theory problems.)

**Recommendations:**

* **Choose the option that best fits your website’s audience and post content.**
* If your site is geared towards beginners, stick to options 1, 2, or 4.
* Option 3 is appropriate for a more educational website.
* Option 5 would be suitable if your content requires deeper dives into mathematics.
* You can add a brief parenthesized pinyin pronunciation alongside the Chinese term for clarity, especially if your audience is not native to Mandarin Chinese.
* Consider including relevant keywords your audience might search for, such as “composite numbers”, “因子”, “分解”, “質數” (prime number).
* Always put a period (句點) at the end.

When you enter one of these into the WordPress tag description box, make sure it’s in Traditional Chinese fonts! Good luck!