Here are a few options for a WordPress post tag description for “洗臉” (Wash Face) in Traditional Chinese, ranging in formality and detail:

**Option 1 (Short & Simple):**

> 了解關於日常洗臉的知識與小貼士。 (Understand the knowledge and tips about daily face washing.)

**Option 2 (Slightly More Detailed):**

> 所有關於洗臉的文章，包括正確的洗臉步驟、適合不同膚質的洗面乳選擇，以及常見的洗臉問題解答。 (All articles about washing your face, including the correct steps for washing your face, the selection of cleansers suitable for different skin types, and answers to common face washing questions.)

**Option 3 (Benefit-Oriented):**

> 擁有健康、潔淨的肌膚從洗臉開始！在這裡您可以找到關於洗臉的基本知識、產品推薦和護膚秘訣，讓您的肌膚焕發健康光彩。(Having healthy, clean skin starts with washing your face! Here you can find basic knowledge about washing your face, product recommendations, and skincare secrets, letting your skin radiate healthy radiance.)

**Option 4 (Focus on Content Variety):**

> 所有涵蓋洗臉主題的文章，包含深入的技巧討論、產品比較和實用的護膚建議。無論您是洗臉新手還是有經驗的護膚愛好者，都能在此找到對您有幫助的資訊。(All articles covering the topic of washing your face, including in-depth technique discussions, product comparisons, and practical skincare advice. Whether you are a beginner at washing your face or an experienced skincare enthusiast, you can find information here that will be helpful to you.)

**Tips for Choosing the Best Option:**

* **Consider your audience:** Who are you writing for? Are they beginners or experienced skincare enthusiasts?
* **Think about the content of your posts:** What kind of information do you typically write about related to “洗臉”?
* **Keep it concise:** The description should provide a clear and concise overview of the topic.
* **Use relevant keywords:** While “洗臉” is the main keyword, you can incorporate related terms like “護膚” (skincare), “洗面乳” (cleanser), “肌膚” (skin), etc., if relevant.
* **Make it appealing:** The description should encourage readers to click on the tag and explore related content.

Choose the description that best reflects your content and target audience. You can also adapt these descriptions to suit your specific needs!