Pulsatances
(pulsatance 的復(fù)數(shù)) n. 角頻率；角速度
??? 情景例句
When does the next train leave for New York?
到紐約的下一趟火車什么時候開車？
Don't touch it!
不許碰！
Supper is ready at six.
晚餐六點鐘就好了。