形容词
1. Coal is a fossil fuel.
煤是一种矿物燃料。
名词
1. She is an old fossil.
她是个老顽固。
1. 化石
A fossil is the hard remains of a prehistoric animal or plant that are found inside a rock.
fossil
1. 化石
A fossil is the hard remains of a prehistoric animal or plant that are found inside a rock.
fossil
