Here are a few options for a WordPress post tag description, depending on the context and desired level of detail:

**Option 1: Concise & General**

* **Description:** 航行启程，告别陆地。 (Hángxíng qǐchéng, gàobié lùdì.) – Departure for a voyage, leaving land behind.

**Option 2: Focused on the Meaning**

* **Description:** 表示船只或飞机等开始航行，离开港口或出发点。 (Biǎoshì chuánzhī huò fēijī děng kāishǐ hángxíng, líkāi gǎngkǒu huò chūfādiǎn.) – Indicates a ship, plane, etc., beginning its voyage, leaving the harbor or point of departure.

**Option 3: Adding a Touch of Emotion/Imagery**

* **Description:** 出港的时刻，充满希望与冒险。 离港的钟声响起，开启新的旅程。 (Chū gǎng de shíkè, chōngmǎn xīwàng yǔ mào xiǎn. Lí gǎng de zhōngshēng xiǎngqǐ, kāiqǐ xīn de lǚchéng.) – The moment of departure, filled with hope and adventure. The bell of leaving the port rings, beginning a new journey.

**Option 4: Simple and Direct (if the post is about a specific departure)**

* **Description:** 关于出港的文章。 (Guānyú chū gǎng de wénzhāng.) – Articles about departure.

**Why these options and considerations:**

* **Traditional Chinese:** All descriptions use Traditional Chinese characters correctly.
* **Context Matters:** The BEST choice depends on what your blog or website is about. If you’re writing about travel, Option 3 is good for a more evocative feeling. If you’re specifically reviewing a ship/plane departure then Option 2 or 4 is better.
* **Keywords (Implicit):** The Chinese words themselves (航行, 离港, 出发) are already relevant keywords for search. The description just adds context and clarifies the focus.
* **Conciseness:** WordPress likes shorter descriptions, so avoid too much over-explanation.

How to choose:

1. **What is your blog about?** (Travel, Maritime, News, etc.?)
2. **What are the “出港” posts about?** (Specific departures, general travel, etc.?)
3. **Do you want to be more descriptive or more functional?**

I recommend starting with **Option 1 or 2**, and then customizing it to fit your specific content. Remember to translate and then choose the suitable wording for your content.