1·They left behind their beds or basins as limestone formations that we can still see today.
它们留下了河床或盆地，形成了我们今天仍然可以看到的石灰岩地层。
2·No very satisfactory account of the mechanism that caused the formation of the ocean basins has yet been given.
对于造成海洋盆地形成的机制，至今还没有给出非常令人满意的解释。
3·Extreme changes in daily and seasonal climates preceded the retreat of the seas back into the major ocean basins.
在海洋退回到主要的海洋盆地之前，每日天气和季节性气候发生了剧烈的变化。
4·Endogenous rivers often do not reach the sea but drain into inland basins, where the water evaporates or is lost in the ground.
内源河流通常不会流入大海，而是流入内陆盆地；在那里，水会蒸发或流失到地下。
5·It seems possible that a sinking current of cooled mantle material on the upper side of the plate might be the cause of such deep basins.
看来，板块上侧冷却的地幔物质的下沉流可能是造成这种深盆地的原因。