Here are a few options for a WordPress post_tag description, in Traditional Chinese, catering to different levels of detail and purpose:

**Option 1: Concise and Clear**

* **Title:** 老年犬訓練 (Lǎonián quǎn xùnliàn)
* **Description:** 針對老年犬的訓練與行為調整策略。提供幫助年長狗狗保持活躍、快樂和健康的相關資訊。 (Zhēnduì lǎonián quǎn de xùnliàn yǔ xíngwéi tiáozhěng cèlüè. Tígōng bāngzhù niánzhǎng gǒugou bǎochí huóyuè, kuàilè hé jiànkāng de xiāngguān zīxùn.)
* **Translation:** Training and behavior modification strategies for senior dogs. Provides information to help older dogs stay active, happy, and healthy.

**Option 2: Slightly More Informative**

* **Title:** 老年犬訓練 (Lǎonián quǎn xùnliàn)
* **Description:** 專門針對老年犬設計的訓練技巧與方法。包括老年犬常見行為問題的處理、改善關節問題、以及刺激牠們心智的遊戲。提供實用的技巧與建議，幫助您的愛犬安享晚年。 (Zhuānmén zhēnduì lǎonián quǎn shèjì de xùnliàn jìqiǎo yǔ fāngfǎ. Bāokuò lǎonián quǎn chángjiàn xíngwéi wèntí de chǔlǐ, gǎishàn guānjié wèntí, yǐjí cìjī tāmen xīnzhi de yóuxì. Tígōng shíyòng de jìqiǎo yǔ jiànyì, bāngzhù nín de àiquǎn ānxiǎng wǎnnián.)
* **Translation:** Training techniques and methods specifically designed for senior dogs. Includes handling common behavioral problems in senior dogs, improving joint issues, and brain-stimulating games. Provides practical tips and suggestions to help your beloved dog enjoy their golden years.

**Option 3: Focused on Benefits and Searchability**

* **Title:** 老年犬訓練 (Lǎonián quǎn xùnliàn)
* **Description:** 想讓您的老年犬保持活力嗎？在這裡您可以找到老年犬訓練的各種技巧、策略、以及安全、溫和的訓練方法。包括改善體能、減輕壓力、增進互動，以及應對老年犬常見的健康和行為問題。 (Xiǎng ràng nín de lǎonián quǎn bǎochí huólì ma? Zài zhèlǐ nín kěyǐ zhǎodào lǎonián quǎn xùnliàn de gèzhǒng jìqiǎo, cèlüè, yǐjí ānquán, wēnhé de xùnliàn fāngfǎ. Bāokuò gǎishàn tǐnéng, jiǎnqīng yālì, zēngjìn hùdòng, yǐjí yìngduì lǎonián quǎn chángjiàn de jiànkāng hé xíngweí wèntí.)
* **Translation:** Want to keep your senior dog active? Here you can find various techniques, strategies, and safe, gentle training methods for senior dogs. Includes improving physical fitness, reducing stress, enhancing interaction, and addressing common health and behavioral issues in senior dogs.

**Why these choices?**

* **Clear and Concise:** They directly address the topic.
* **Targeted Language:** They use vocabulary easily understood by people interested in senior dog care.
* **SEO-Friendly (in a subtle way):** They include relevant keywords like “訓練” (xùnliàn – training), “老年犬” (lǎonián quǎn – senior dog), and potentially related health and behavior problems.
* **Benefit-Oriented:** They highlight the positive results of training.
* **Appropriate Tone:** The descriptions are warm and caring, reflecting the loving relationship people have with their pets.

Choose the option that best suits your overall site structure and target audience. Remember to also use the “Description” field within WordPress when creating the tag to store one of these. Good luck!