Okay, here are a few description options for the WordPress post tag “郵包” (Yóubāo, Parcel/Package) in Traditional Chinese, along with explanations to help you choose the best one:

**Option 1: Simple and Direct**

* **Description:** 與郵寄有關的一切，包含包裹、郵件和包裝。 (Yǔ yóujì yǒuguān de yīqiè, bāohán bāoguǒ, yóujiàn hé bāozhuāng.)
* **Translation:** Everything related to postal services, including parcels, mail, and packaging.
* **Why this is good:** Clear, concise, and suitable for a general audience. It encompasses the broad meaning of “郵包”.

**Option 2: Emphasizing Relevance in the Digital Age**

* **Description:** 網購包裹、國際郵包、寄送禮物等相關話題。 (Wǎnggòu bāoguǒ, guójì yóubāo, jìsòng lǐwù děng xiāngguān huàtí.)
* **Translation:** Topics related to online shopping parcels, international parcels, and sending gifts.
* **Why this is good:** More relevant to the modern context, highlighting common uses of parcels like online shopping and gift-giving, and suitable for any blog relating to online shopping, customs information, international shipping etc.

**Option 3: Focusing on the Action and Process**

* **Description:** 郵包的寄送、接收、追蹤，以及一切與郵遞包裹相關的資訊與指南。 (Yóubāo de jìsòng, jiēshōu, zhuīzōng, yǐjí yīqiè yǔ yóudì bāoguǒ xiāngguān de zīxùn yǔ zhǐnán.)
* **Translation:** The sending, receiving, and tracking of parcels, as well as all information and guides related to postal packages.
* **Why this is good:** This is relevant for blogs or posts regarding tracking information, custom regulations and tutorials related to shipping.

**Option 4: More Detailed, if specific topics are covered**

* **Description:** 關於郵包的一切：包括國內與國際郵包的寄送、運費、關稅、追蹤、包裝建議，以及與郵局相關的服務資訊。 (Guānyú yóubāo de yīqiè: bāokuò guónèi yǔ guójì yóubāo de jìsòng, yùnfèi, guānshuì, zhuīzōng, bāozhuāng jiànyì, yǐjí yǔ yóujú xiāngguān de fúwù zīxùn.)
* **Translation:** Everything about parcels: including domestic and international parcel shipping, shipping costs, customs, tracking, packaging advice, and service information related to the post office.
* **Why this is good:** Provides a comprehensive overview of what the tag covers, suitable if the content on your website is in-depth shipping or postal related guides.

**How to choose the best one:**

1. **Website/Blog Content:** Consider the general topics you write about. Are you focusing on online shopping, regulations, gift-giving, or something else?
2. **Target Audience:** Who are you trying to reach? A general audience? Businesses? International shoppers?
3. **Keep it concise or detailed**: Decide what you want to show through this specific tag.

**Recommendation:**

I recommend **Option 2 or 3** as a good starting point, depending on your website’s main focus. Option 2 highlights popular and up-to-date uses of parcels. Option 3 is geared more towards providing guidance regarding the process. If you’re really in-depth shipping regulations, **Option 4** will work.

When you are placing the description, aim for:

* **Good keywords:** Use words your target audience would search for (e.g., “國際郵包”, “網購”, “寄送”).
* **Clarity:** Make it easy to understand what the tag is for.
* **SEO:** (if applicable) Consider including relevant keywords to improve search engine optimization.