1. Sunset casts a warm glow over the tufa formations as seagulls forage for dinner. 海鸥在寻找晚餐时,夕阳在凝灰岩地层投射了温暖的光辉。
2. A recent study of some of the formations presents some new theories about the area's past. 最近针对一些地层的一项研究提出了一些关于该地区过去形态的新理论。
3. 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。
4. Another difference, very important today for distinguishing between older lake beds and newer ones, is the location of the limestone formations. 如今在区分新老湖床方面非常重要的另一个不同点在于石灰岩地层的位置。
5. Both clay and sandstone are unstable rock formations. 黏土和砂岩都是不坚固的岩石构造。