Quaternion
n. 四个一组, 四个一套, 四元数
🗣️ 情景例句
Stewart. S-t-e-w-a-r-t. Thank you.
Stewart， S t e w a r t。谢谢你。
May I smoke?
我能抽烟吗？
There were twenty cars in the race.
参加比赛的有20辆汽车。