Here are a few options for the description of the WordPress tag “海外素食” in Traditional Chinese, ranging in detail and tone:

**Option 1: Concise & Direct**

> 在海外也能享受到的素食美食，包括各國料理、素食餐廳推薦以及素食食材採購資訊。
>
> (Enjoy vegetarian cuisine overseas, including dishes from various countries, recommendations for vegetarian restaurants, and information on purchasing vegetarian ingredients.)

**Option 2: Slightly More Descriptive**

> 探索海外素食世界！這裡分享世界各地的素食美食，提供素食餐廳、素食超市和素食旅行的實用資訊。無論您是旅行者、留學生還是素食愛好者，都能找到寶貴的資源。
>
> (Explore the world of vegetarian food overseas! This tag shares vegetarian cuisine from different countries, providing practical information on vegetarian restaurants, vegetarian supermarkets, and vegetarian travel. Whether you’re a traveler, an international student, or a vegetarian enthusiast, you’ll find valuable resources.)

**Option 3: Focus on Practicality**

> 想在海外維持健康的素食飲食嗎？本標籤匯集了海外素食餐廳評鑑、素食食材採購指南，以及適合素食者的旅行攻略。輕鬆享受美味又安心的海外素食生活。
>
> (Want to maintain a healthy vegetarian diet overseas? This tag collects reviews of vegetarian restaurants overseas, guides to purchasing vegetarian ingredients, and travel tips for vegetarians. Easily enjoy a delicious and worry-free vegetarian life overseas.)

**Option 4: Emphasis on Community**

> 加入海外素食愛好者的行列！分享你在海外發現的素食美食、餐廳和小撇步。一起探索異國文化，同時保持健康素食的飲食習慣。
>
> (Join the community of vegetarian enthusiasts overseas! Share the vegetarian delicacies, restaurants, and tips you’ve discovered overseas. Explore foreign cultures together while maintaining a healthy vegetarian diet.)

**Choosing the best option:**

* Consider the target audience of your website.
* How detailed do you want your post tags to be?
* Are you focusing on practical information, inspiration, or community building?

Choose the description that best fits your overall website style and content type. It’s also perfectly acceptable to use a combination of these ideas. Good luck!