Here are a few options for a WordPress post tag description, ranging from concise to slightly more elaborate, along with translations and explanations:

**Option 1: Concise & Direct**

* **Title:** 兩人
* **Description:** 指兩個人，兩位。 (Zhǐ liǎng gèrén, liǎng wèi.)
* **Translation:** Refers to two people/persons, two individuals.
* **Explanation:** Simple and to the point. Suitable if you want to keep tag descriptions brief.

**Option 2: Slightly More Contextual**

* **Title:** 兩人
* **Description:** 在文章中，標記涉及兩位人物或兩個實體的內容。 (Zài wénzhāng zhōng, biāojì shèjí liǎng wèi rénwù huò liǎng gè shítǐ de nèiróng.)
* **Translation:** In articles, marks content involving two people or two entities.
* **Explanation:** This clarifies the context of the tag – it pertains to the content of the article. It subtly suggests the content features two individuals, characters, or items.

**Option 3: Focus on Relationships**

* **Title:** 兩人
* **Description:** 描述兩人之間的關係，互動，故事或關係。 (Miáoshù liǎng rén zhījiān de guānxì, hùdòng, gùshì huò guānxì.)
* **Translation:** Describes the relationship, interactions, stories, or connections between two people.
* **Explanation:** This option highlights the relational aspects of the content, ideal if the focus of your articles is on relationships between the pair.

**Option 4: Broader Interpretation**

* **Title:** 兩人
* **Description:** 此標籤用於標記涉及兩個要素的內容，包括人物、事物或概念。 (Cǐ biāoqiān yòngyú biāojì shèjí liǎng gè yàosù de nèiróng, bāokuò rénwù, shìwù huò gài niàn.)
* **Translation:** This tag is used to mark content that involves two elements, including people, things, or concepts.
* **Explanation:** This broadens the scope to cover more than just people, potentially encompassing articles about two objects, ideas, or other pairings.

**Choosing the Best Option:**

Consider these factors when selecting a description:

* **Content of Your Blog/Website:** What type of content do you publish? Determine whether the tag primarily involves two people, or a broader range of elements?
* **Target Audience:** Who are you writing for? Is it necessary to offer a very explicit hint?

I recommend option 1 or 2 for brevity, with option 3 being more specific, and option 4 being suitable for wider range of content. Choose the one that best aligns with your site’s overall purpose and content style.