Dixenite
黑硅砷锰矿
🗣️ 情景例句
Practice tenses as much as possible.
操练各种时态。
Can I use the lift?
我能用电梯吗？
The film was set in California in the middle of the nineteenth century.
这部影片是以19世纪中叶加利福尼亚为背景的。