vanguard character的用法和樣例：
例句
- Tongli is also a vanguard of developing Energy-saving and Environmental Protection products.
通力也是開發節能環保的先鋒，長久以來以其創新性和技術的先進性獲得了全世界的讚譽。 - Party's sophistication has the bright practice moral character, insists the sophistication again in the practice.
黨的先進性有著鮮明的實踐品格，堅持先進性重在實踐。
