Here are a few options for the description of the WordPress tag “ecommerce platform” in Traditional Chinese, ranging in style and focus:

**Option 1: Short & Sweet (Concise)**

* **Traditional Chinese:** 電商平台 (Diànshāng píngtái)
* **English Translation (for reference):** Ecommerce Platform

**Option 2: Slightly More Descriptive (Focus on Scope)**

* **Traditional Chinese:** 涵蓋各種線上商店、購物網站和數位零售的平台。 (Hángài gèzhǒng xiànshàng shāngdiàn, gòuwù wǎngzhàn hé shùwèi língshòu de píngtái.)
* **English Translation (for reference):** Platforms encompassing all types of online stores, shopping websites, and digital retail.

**Option 3: Emphasis on Usage (How it’s used)**

* **Traditional Chinese:** 用於標記與線上銷售、購物網站建立以及電商相關技術和服務的文章。 (Yòngyú biāojì yǔ xiànshàng xiāoshòu, gòuwù wǎngzhàn jiànlì yǐjí diànshāng xiāngguān jìshù hé fúwù de wénzhāng.)
* **English Translation (for reference):** Used to tag articles related to online sales, setting up shopping websites, and e-commerce related technologies and services.

**Option 4: Focusing on the target Audience**

* **Traditional Chinese:** 專注於為企業、零售商和創業者提供建立和管理線上商店的解決方案。 (Zhuānzhù yú wèi qǐyè, língshòushāng hé chuàngyèzhě tígōng jiànlì hé guǎnlǐ xiànshàng shāngdiàn de jiějué fāng’àn.)
* **English Translation (for reference):** Focusing on providing solutions for businesses, retailers, and entrepreneurs to build and manage online stores.

**Choosing the best option:**

* Consider the target audience of your WordPress site.
* Think about the overall tone of your site.
* Select the description that best reflects what the tag “ecommerce platform” means to you and your readers.

I recommend **Option 2** or **Option 4** These offers a good balance of descriptiveness and clarity while still being concise and easy to understand for your readers. Just adapt the best option to fit your content.