characteristic services的用法和樣例：
例句
- Abstract The characteristic services work under the network environment is a focal point of research in public library circles.
網路環境下公共圖書館特色服務工作，是目前公共圖書館界研究熱點之一。 - Yiyo is a service system especially designed for roamming users, including phone number booking and other special services, such as weather forcast and language translation.
易游系統是一個專門為漫遊用戶設計的服務系統，包括訂閱號碼和其他特色服務如天氣預報，語言翻譯等。
