Here are a few options for the WordPress tag description “台幣換USDT” in Traditional Chinese, each with a slightly different focus:

**Option 1 (Concise and Direct):**

> 透過台幣將資金兌換成 USDT（泰達幣）的相關資訊與資源。 了解如何安全、便捷地進行台幣（TWD）換USDT交易。
>
> *(Focus: Direct explanation of the topic and the use of abbreviations)*

**Option 2 (Emphasis on Safety):**

> 尋找關於使用台幣安全地購買USDT（泰達幣）的資訊？ 我們提供關於台幣兌換USDT的指南、交易所推薦及安全提示，幫助您保護您的加密資產。
>
> *(Focus: Safety and security for the transaction)*

**Option 3 (Includes related terms):**

> 關於利用台幣（TWD）轉換為 USDT（泰達幣）的指南、教學、交易所推薦、交易技巧與常見問題。探索加密貨幣交易、數位貨幣兌換，以及台灣本地的加密貨幣兌換服務。
>
> *(Focus: More inclusive, mentioning related terms for SEO)*

**Option 4 (Short and Sweet):**

> 台幣（TWD）兌換 USDT（泰達幣）相關資訊，包括交易所、指南及教學。
>
> *(Focus: Short and easy to understand)*

**Recommendation:**

I recommend **Option 1** or **Option 3**. Option 1 is clear and concise, while Option 3 offers more SEO value by including related keywords. The best choice depends on your overall SEO strategy for your website. Be sure to consider what your target audience is searching for and what key terms they likely use. Remember to also **fill in the “Slug” field** during tag creation with a suitable URL-friendly version of “台幣換USDT” to help for SEO purpose, for example: “tai-bi-huan-usdt” or “taibi-huan-usdt”.