Here are a few options for the description of a WordPress post tag with the title “不反彈” in Traditional Chinese (assuming the tag refers to something like rebound, bounce back, or lack of side effects):

**Option 1: General & Concise**

* **Description:** 確保穩定，不再反彈。 (Ensuring stability, no more rebounds.)
* **Keywords:** 穩定 (stability), 持續 (sustainability), 不反彈 (no rebound), 長效 (long-lasting), 安全 (safe).

**Option 2: Emphasizing Stability and Reliability**

* **Description:** 強調效用持久，不再重蹈覆轍。 (Emphasizing lasting effects, no more repeating mistakes.)
* **Keywords:** 持久 (lasting), 穩定 (stable), 可靠 (reliable), 無副作用 (without side effects), 治癒 (healing).

**Option 3: Focusing on Specific Context (Adapt based on content)**

* **Description (If related to health/medicine):** 避免病情反彈，保障健康成果。 (Avoiding a relapse of the condition, protecting health results.)
* **Keywords:** 健康 (health), 復發 (relapse), 保障 (protection), 治療 (treatment), 改善 (improvement).

* **Description (If related to project management/finance):** 確保項目/資金穩定，避免反彈風險。 (Ensuring project/funds stability, avoiding rebound risks.)
* **Keywords:** 穩定 (stability), 風險 (risk), 成功 (success), 財務 (financial), 避免 (avoid).

**Option 4: More Descriptive**

* **Description:** 描述那些不會、或不傾向於出現反彈、回彈或反跳現象的事物。這表示穩定性、可靠性，以及避免重蹈覆轍。 (Describes those things that do not, or are not inclined to, exhibit rebound, bounce-back, or bounce-off phenomena. This indicates stability, reliability, and avoiding repeating mistakes.)
* **Keywords:** 穩定 (stability), 回彈 (rebound), 持續 (continuous), 可靠 (reliable), 避免重蹈覆轍 (avoiding repeating mistakes), 長期 (long-term).

**How to Choose:**

* **Consider the content:** The most effective description will be relevant to what the tagged posts are *actually about*.
* **Keywords are important:** Think about the terms people will use to search for your content related to “不反彈.”
* **Keep it concise:** WordPress descriptions are often displayed in summaries, so aim for clarity.

I recommend choosing the option (or customizing it) that best reflects the *specific* content of your posts related to “不反彈.” Good luck!