这些岩石记录了几亿年前海洋沉积的痕迹。Zhèxiē yánshí jìlù le jǐ yì nián qián hǎiyáng chénjī de hénjì.These rocks record traces of marine sedimentation from hundreds of millions of years ago.
山脚下布满了大大小小的岩石,溪水从中流过。Shānjiǎo xià bùmǎn le dàdà xiǎoxiǎo de yánshí, xīshuǐ cóng zhōng liúguò.The foot of the mountain is covered with rocks of all sizes, and a stream flows between them.
海边的岩石被海浪冲刷得非常光滑。Hǎibiān de yánshí bèi hǎilàng chōngshuā dé fēicháng guānghuá.The rocks by the sea have been polished very smooth by the waves.