Vanalium
钒铝合金
🗣️ 情景例句
Have you ever been to a buffet dinner?
你去吃过自助餐吗？
Who would be so dumb?
谁会这么蠢？
The eraser goes from one student to another first one way, then another.
橡皮擦从一个学生传给另一个学生－先从这个方向传过去，然后返回来。