Rock lobsters prey on sea urchins, and increased rock lobster densities coincided with significant decreases in urchins.

岩石龙虾以海胆为食，而岩石龙虾密度的增加正好与海胆数量的显著减少相吻合。

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Rock art is the name given to pictures drawn on rock by ancient peoples.

岩石艺术是指古代人们在岩石上画的画。

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Between the last layer of Cretaceous rock and the first layer of Cenozoic rock, there is often a thin layer of clay.

在最后一层白垩纪岩石和第一层新生代岩石之间，常常有一层薄薄的粘土。

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He said rock climbing is a high risk sport in which many people overestimate their abilities and underestimate the rock.

VOA: special.2009.12.09

This may sound a little bit too much, but I'm no different than that animal, than that tree, than that rock.

这也许一下子很难接受，但我与各种动物没有不同，也与树木，岩石无异。

普林斯顿公开课 - 人性课程节选

for... like a, music concerts, like rock concerts and some corporate events and things like that.

他负责……比如，音乐会、摇滚演唱会、一些公司活动等等。

成为演员之路 - SpeakingMax英语口语达人

The fund will be called Third Rock Ventures (because Earth is the third rock from the sun).

FORBES: Biotech Battle Scars

It will be challenging for the company as it transitions from soft-rock mining to hard-rock mining.

FORBES: High Costs In 2013 Will Continue To Be A Hurdle For IAMGOLD

The Geopark showcases rock and water interaction present in gigantic rock erosion shapes and impressive landscape phenomena.

UNESCO: NATURAL SCIENCES