Here are a few descriptive options for a WordPress post_tag with the title “寄件” (Traditional Chinese), catering to different nuances and SEO considerations:

**Option 1 (Most Concise and General):**

* **Description:** 關於寄送物品、包裹的相關資訊與討論。 (Information and discussion regarding mailing items and packages.)

**Option 2 (Focus on Practicality and Services):**

* **Description:** 討論寄送包裹、信件、包裹追蹤、郵局服務、快遞服務等相關實用資訊。 (Practical information regarding sending packages, letters, package tracking, post office services, express delivery services, and more.)

**Option 3 (SEO-Friendly and Broad):**

* **Description:** 寄件相關的所有資訊，包括郵寄方法、運費比較、包裝技巧、國際寄送、國內寄送、集運、快遞公司等。 (All information related to sending items, including mailing methods, shipping cost comparisons, packaging tips, international shipping, domestic shipping, consolidation, express delivery companies, etc.)

**Option 4 (Emphasis on User Experience):**

* **Description:** 分享寄件經驗、解決寄送問題、討論最划算的寄送方案。讓寄件變得更輕鬆。 (Sharing shipping experiences, solving shipping problems, discussing the most cost-effective shipping options. Making shipping easier.)

**Option 5 (More Formal and Business-Focused):**

* **Description:** 與寄件相關的專業知識、最新行業趨勢、物流解決方案等資訊。 (Expertise, the latest industry trends, logistics solutions, and other information related to shipping.)

**Key Considerations When Choosing:**

* **Audience:** Who are you trying to reach? Beginners? Seasoned shippers? Businesses?
* **Content of the Post:** What are the posts actually about? Are they tutorials, reviews, news articles, etc.?
* **SEO Keywords:** Are there any particular keywords you want to incorporate to increase SEO?
* **Conciseness:** WordPress descriptions can be truncated in some themes, so aim for a clear and concise message.

Ultimately, choose the description that best suits your content and target audience. Remember to consider the tone and style of your website. I recommend using a description that is **clear, concise, and includes relevant keywords.** For most cases, Option 2 or Option 3 are strong choices.