If the glass were kept hot enough, it would flowover the molten tin until the top surface was also flat, horizontal and perfectly parallel to the bottom surface.
如果玻璃保持足够的温度，它就会在熔化的锡中流动，直到顶部表面也变得平整、水平，与底部表面完全平行。
2
Earlier research has found that they flowover long distances and into our oceans, hurting ecosystems along the way.
早期的研究发现，它们流过很长的距离后汇入海洋，会损害沿途的生态系统。
3
Messages flowover a bus that interconnects a variety of communicating participants.