railgun的用法和樣例：
例句
用作名詞 (n.)
- So you have the Railgun upgrade and the support power all ready but when should you use it?
你擁有軌道炮升級并且支援技能預備就緒了，那么什么時候你應該使用它呢？ - For a comprehensive look at this support power, take a look at the Railgun Accelerator Tip of the Week found here.
假如你想更好的理解這個技能，請參見軌道炮加速器指南。
