Geologists have studied the way that heat flows from the earth.地质学家曾研究过热量如何散出地球。We need helpers of all types, engineers, scientists (e.g. geologists) and teachers.我们需要各方面的帮手：工程师、科学家（例如地质学家）和教师。By drilling, geologists can...
Geologists uncovered the hidden riches.地质学家发现了地下的宝藏。Geologists describe the motion of the plates and the consequences of such motion as plate tectonics.地质学家把板块运动及这种运动所造成的后果看作是板块构造运动.By drilling, geologists can take measu...