Ferroakermanite
铁镁黄长石
🗣️ 情景例句
When he came to the States five years ago, he had only forty dollars in his pocket.
五年前他来美国时，口袋里只有40美元。
Keep up the good work.
再接再厉。
The teacher gives one of them an eraser.
教师给其中一人一块橡皮擦。