Jacobsite
锰尖晶石
🗣️ 情景例句
I'm afraid I didn't get on very well in the exam.
我这次考试恐怕不太顺利。
There isn't much room for doubt in this matter.
关于这件事，不大有质疑余地。
He did not see the bag until it was too late.
等他看见袋子时已经太晚了。