Here are a few options for the WordPress post_tag description, keeping in mind brevity and clarity (as post tag descriptions should be):

**Option 1 (General & Simple):**

> 分享搭乘體驗。 (Share your riding experiences.)

**Option 2 (Focus on sharing advice):**

> 分享或尋求搭乘交通工具的建議。 (Share or find advice on using transportation.)

**Option 3 (Encouraging user interaction):**

> 搭乘心得分享，歡迎交流與討論！ (Share your riding experiences, welcome exchange and discussion!)

**Option 4 (Slightly more specific – if the blog is about travel):**

> 分享旅遊交通、搭乘經驗！ (Share travel transportation, riding experiences!)

**How to Use This Information in WordPress:**

1. **Navigate to Posts -> Tags (In the WordPress dashboard)**.
2. **Find the tag:** You might need to search for “搭乘心得” if you already have it. If not, create a **New Tag** and enter the title, “搭乘心得.”
3. **Add the Description:** In the “Description” field, paste the description from one of the options above. Choose the one that best fits your blog’s overall tone and content.
4. **Save:** Click “Update Tag” to save the changes.

Remember to choose the description that best reflects the content of your blog posts and what you want readers to get out of the tag. Good luck!