Cers
塞尔斯风
🗣️ 情景例句
We have several package tours you may choose, from ten days to three weeks in Europe.
我们有几套欧洲旅游计划选择，时间从10天到3个星期。
Do you always fold the clothes after you bring them in off the line?
你把衣物从晒衣绳收下来时，会把它叠好吗？
If we could actually see the path described by a particle,such as a sand grain in the rock,
假如我们真能看到的运动轨迹，诸如岩石中一个沙粒分子