Here are a few options for a WordPress post_tag description, depending on the nuances you want to convey:

**Option 1: Straightforward and informative**

* **Title:** 危險食物 (Dangerous Food)
* **Description:** 此標籤包含關於可能對健康構成風險的食物資訊，包括食物中毒、過敏原、以及其他潛在的有害物質。 (This tag contains information about foods that may pose a health risk, including food poisoning, allergens, and other potentially harmful substances.)

**Option 2: Emphasizing vigilance and awareness**

* **Title:** 危險食物 (Dangerous Food)
* **Description:** 透過本標籤，了解潛藏於日常飲食中的危險。 獲取更多關於食物安全、如何辨別有害食物，以及如何保護您和您家人的健康。 (Stay informed about the dangers lurking in your everyday diet with this tag. Learn more about food safety, how to identify harmful foods, and how to protect the health of you and your family.)

**Option 3: Focused on specific types of dangers**

* **Title:** 危險食物 (Dangerous Food)
* **Description:** 此標籤涵蓋可能存在於食物中的各種危險，例如農藥殘留、食品添加物、受污染食材等。 幫助您建立更安全的飲食習慣。 (This tag covers various dangers that may be present in food, such as pesticide residues, food additives, and contaminated ingredients. Helps you establish safer eating habits.)

**Option 4: More concise**

* **Title:** 危險食物 (Dangerous Food)
* **Description:** 關注有關食物安全與潛在危害的資訊。 (Focus on information about food safety and potential hazards.)

**Key Considerations when choosing:**

* **Target Audience:** Consider who you are writing for. Are they experts or general consumers? Adjust the language accordingly.
* **Scope of the Tag:** Will this tag include information on specific types of hazards or just general food safety? Tailor the description to reflect the breadth of content you’ll be including.
* **Keywords:** If you’re using SEO (Search Engine Optimization), consider including relevant keywords in the description (e.g., 食物中毒 (food poisoning), 過敏原 (allergens), 食品安全 (food safety)).
* **Length:** WordPress allows for a good length, but keep it concise and easy to understand.

**How to implement this in WordPress:**

When you create or edit the post tag “危險食物” in your WordPress admin panel, you’ll usually find a field for “Description.” Paste the description you’ve chosen into that field.