Here are a few options for the WordPress post_tag description, catering to different tones and levels of detail, all translated into Traditional Chinese:

**Option 1: Concise and Direct**

* **Title:** 寄養費用 (Jìyǎng fèiyòng)
* **Description:** 了解寄養寵物的相關費用，包括獸醫診金、飼料、住宿等。 (Liǎojiě jìyǎng chǒngwù de xiāngguān fèiyòng, bāokuò shòuyī zhěnjīn, sìliào, zhùsù děng.) – *Learn about the related costs of fostering pets, including veterinary fees, food, and accommodation.*

**Option 2: More Informative**

* **Title:** 寄養費用 (Jìyǎng fèiyòng)
* **Description:** 深入探討寄養寵物時可能產生的各種費用。此標籤包括獸醫護理、糧食、玩具、床鋪、和任何額外的費用，幫助您預算，並做好準備。 (Shēnrù tàn tǎo jìyǎng chǒngwù shí kěnéng chǎnshēng de gè zhǒng fèiyòng. Cǐ biāoqiān bāokuò shòuyī hùlǐ, liángshí, wánjù, chuángpū, hé rènhé éwài de fèiyòng, bāngzhù nín yùsuàn, bìng zuò hǎo zhǔnbèi.) – *Explore in-depth the various costs that may arise when fostering pets. This tag includes veterinary care, food, toys, bedding, and any additional expenses, helping you budget and prepare.*

**Option 3: Focused on Finding a Foster**

* **Title:** 寄養費用 (Jìyǎng fèiyòng)
* **Description:** 想成為寄養家庭？在這裡了解寄養寵物的費用結構，為您提供清晰的費用預算，幫助您更好地決定是否適合寄養。 (Xiǎng chéngwéi jìyǎng jiātíng? Zài zhèlǐ liǎojiě jìyǎng chǒngwù de fèiyòng jiégòu, wèi nín tígōng qīngxī de fèiyòng yùsuàn, bāngzhù nín gèng hǎo de juédìng shìfǒu shìhé jìyǎng.) – *Want to become a foster family? Learn about the cost structure of fostering pets here, providing you with a clear budget to help you better decide if fostering is right for you.*

**Option 4: Short and Sweet**

* **Title:** 寄養費用 (Jìyǎng fèiyòng)
* **Description:** 有關寄養寵物的成本資訊。 (Yǒu guān jìyǎng chǒngwù de chéngběn zīxùn.) – *Information on the costs of fostering pets.*

**Key Considerations when Choosing:**

* **Target Audience:** Who are you writing the post for? New foster parents? Experienced ones?
* **Blog Style:** What is the overall tone and style of your blog?
* **SEO:** Consider the keywords people might use to search for information on fostering fees (e.g., “寄養費用, 寵物”).

I recommend choosing the description that best suits your blog’s style and the information you’re providing in the associated posts. Remember to update the description as needed if the content changes. Good luck!