Kappameter
磁化率测定仪
🗣️ 情景例句
They can build a space craft and send it to the edges of our very solar system.
他们能制出航空飞船并将其发送到太阳系的边缘。
Do you have a ball point pen?
你有圆珠笔吗？
Come to school in your old clothes tomorrow!
明天上学时请穿旧衣服来！