Impulsor
[数]非共面直线对
🗣️ 情景例句
Do you have any tickets available for that date?
你们有那天的票吗？
Poverty is no shame, laziness is.
贫穷不害羞，懒惰才可耻。
When are you going to have a holiday, Sam?
萨姆，你准备什么时候去度假？