经典句型 It is a worked-out silver mine 它是个开采光了的银矿。
No minerals have yet been exploited in this area. 这个区域的矿藏还未开采。
They were shoveling coal into a cart. 他们在把煤铲进手推车里。
We should all remain cautious. 我们都应该保持谨慎。
He drilled a series of holes in the frame with an electric drill. 他用电钻在框架上钻了一串孔。
The composition varied depending on the temperature of the water in which they formed. 不同的成分取决于它们形成时期的水温。
[图片0] 常用词汇 exploit 开发，开拓;开采 tramcar 矿车 mine 矿山 dig 挖掘 cautious 谨镇的;十分小心的 mineral 矿物;矿物质 electric drill 电钻 erupt 爆发;喷出 composition 成分;混合物 formation 形成;构造 extrusion 挤出；推出；赶出；喷出 weather 风化；受侵蚀