Here are a few options for a description of a WordPress post tag “英文詞彙量” (English Vocabulary) in Traditional Chinese, ranging in formality and focus:

**Option 1 (Concise & Direct):**

> 探索與學習英文單字相關的文章，包含字彙學習技巧、詞彙量測驗、字根字首分析等。

> *Translation: Explore articles related to English vocabulary, including vocabulary learning techniques, vocabulary tests, and analysis of roots and prefixes, etc.*

**Option 2 (Slightly more Descriptive):**

> 你想提升英文詞彙量嗎？在這裡，你將找到關於英文單字、詞彙學習策略、不同程度字彙測驗，以及強化理解英文文法的文章。無論你是初學者還是進階學習者，都能找到有用的資源。

> *Translation: Do you want to improve your English vocabulary? Here, you’ll find articles about English words, vocabulary learning strategies, vocabulary tests for different levels, and how to strengthen your understanding of English grammar. Whether you’re a beginner or an advanced learner, you can find helpful resources here.*

**Option 3 (Focusing on Practical Application):**

> 提升英文溝通和閱讀能力的關鍵：英文詞彙量！這個標籤下的文章涵蓋各種實用的技巧，例如單字記憶法、語境理解、以及如何在日常生活中擴展你的字彙範圍，幫助你有效地學習和運用英文。

> *Translation: The key to improving your English communication and reading skills: English vocabulary! Articles under this tag cover various practical techniques, such as word memorization methods, contextual understanding, and how to expand your vocabulary range in daily life, helping you effectively learn and use English.*

**Option 4 (Short & Sweet):**

> 關於英文詞彙學習與拓展的資源，掌握更多英文單字，提升你的英語能力。

> *Translation: Resources for learning and expanding English vocabulary. Master more English words and improve your English ability.*

**Which option to choose depends on the overall tone and purpose of your website/blog. Consider these factors:**

* **Target Audience:** Who are you writing for? Beginners? Advanced learners?
* **Content covered:** What topics will the posts tagged with “英文詞彙量” cover?
* **Website tone:** Is your blog formal or informal?

You can adapt and combine elements of these options to best suit your needs. Remember to use keywords relevant to the tag, such as “英文,” “單字,” “詞彙,” “學習,” “測驗,” etc.