Wilkeite
硅硫磷灰石
🗣️ 情景例句
Carl, you're sure you've never played?
Carl，你肯定你从来没玩过吗？
Excuse me for interrupting.
对不起打扰你了。
Hardly anyone can positively enjoy sitting in a train for more than a few hours.
很少有人能够真正喜欢坐几个小时以上的火车。