释义 |
DEFINITIVE EXAMPLES 权威例句〔coccolith〕A microscopic skeletal plate made of calcite that protects certain marine phytoplankton and which, in a fossilized state, forms chalk and limestone deposits.球石:由方解石制成的显微骨架板,保护某些海洋浮游植物,而且它在变成化石状态时形成白垩和石灰石沉积物美国传统〔coprolite〕Fossilized excrement.粪化石:变成化石的粪便美国传统〔fossilize〕Few animals ever fossilize.变成化石的动物少之又少。韦氏高阶〔fossilize〕The mud helped to preserve and fossilize the wood.这种泥土有助于保存木头并使其变成化石。韦氏高阶〔fossilize〕To become a fossil.变成化石美国传统 |