Okay, here are a few options for the WordPress `post_tag` description for “可使用性” in Traditional Chinese, catering to different contexts:

**Option 1: Concise & Generic (Good for general posts)**

* **Description:** 瞭解網站、應用程式或其他產品的易用性，以及提升其使用者體驗的相關內容。 (Liǎo jiě wǎngzhàn, yìngyòng chéngxù huò qítā chǎnpǐn de yìyòng xìng, yǐjí tíshēng qí shǐyòng zhě tǐyàn de xiāngguān nèiróng.)
* **Translation:** Understand the usability of websites, applications, or other products, and related content for enhancing their user experience.

**Option 2: Focus on Design & Development (Suitable if your blog is technical)**

* **Description:** 探索介面設計、使用者體驗 (UX)、可用性測試等，如何打造更易於使用及高效能的設計與程式碼。 (Tànsuǒ jièmiàn shèjì, shǐyòng zhě tǐyàn (UX), kěyòng xìng cèshì děng, rúhé dǎzào gèng yìyú shǐyòng jí gāoxiào néng de shèjì yǔ chéngxù mǎ.)
* **Translation:** Explore interface design, User Experience (UX), usability testing, and more, to create designs and code that are easier to use and more efficient.

**Option 3: Emphasis on Accessibility (Good if you cover accessibility topics)**

* **Description:** 研究如何讓您的網站或產品對所有使用者，包括身心障礙人士，都具有更好的易用性和可理解性。 (Yánjiū rúhé ràng nín de wǎngzhàn huò chǎnpǐn duì suǒyǒu shǐyòng zhě, bāokuò shēnxīn zhàng’ài rénshì, dōu jùyǒu gèng hǎo de yìyòng xìng hé kě lǐ jiě xìng.)
* **Translation:** Investigate how to make your website or product more usable and understandable for all users, including people with disabilities.

**Option 4: Focused on Simple Understanding (Great if aiming for a broad audience)**

* **Description:** 關於產品或網站有多容易使用的討論，包括設計、功能以及不同使用者的理解。 (Guānyú chǎnpǐn huò wǎngzhàn yǒu duō róngyì shǐyòng de tǎolùn, bāokuò shèjì, gōngnéng yǐjí bù tóng shǐyòng zhě de lǐ jiě.)
* **Translation:** Discussions about how easy it is to use a product or website, including the design, functions and understanding of different users.

**How to Apply in WordPress:**

1. **Go to the “Tags” section:** In your WordPress admin, navigate to “Posts” > “Tags”.
2. **Find the “可使用性” tag:** Locate the tag with the title “可使用性”. You might need to use the search box if you have many tags.
3. **Edit the tag:** Click on the tag’s name or click the “Edit” button.
4. **Add the description:** In the text field labelled “Description”, paste the description you chose from above.
5. **Update the tag:** Click the “Update” button to save the changes.

**Choosing the Right Option:**

The best description depends on what kind of content you typically write under this tag. Consider your target audience and what they’re likely looking for. If you have a broader audience, a more generic option is suitable. If you’re very technical, choose the more developer-focused description. Good luck!