原级：outcrop
1. 露头：地质师寻找石油的蛛丝马迹,例如,露头(Outcrops)是暴露在地表的岩床. 地质师研究露头,绘制露头位置图,厚度及角度. 由这些及其他资料,地质师设法制图,而将地下岩床的位置及其形状描绘出来,然后去找储油层. 就如同你用手敲击西瓜,
1. The area is noted for its karst outcrops and famous for its deep rift, waterfalls and curtains of calcium deposits.
2. The three islands and a cluster of outcrops are currently inhabited by a small community of Russian fishermen and their families.
3. The rocky outcrops and pine trees provide an interesting foreground, although it does take the sun much longer to actually come into view.
4. outcrops
4. Guizhou is actually a mammoth parkland, with 70 percent of its surface covered in outcrops of karst limestone.
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5. The outcrops lie midway between the two countries, about 140 miles offshore.