Fersmanite
硅钛钙石
🗣️ 情景例句
You won't be disappointed, Mr. Carlson. Thanks.
我不会让你失望的 Carlson先生。谢谢 。
No gains without pains.
不劳无获。
I left at 6:00 so that I could catch the train.
我六点钟出门，以便赶上火车。