Jurassic serious的用法和樣例：
例句
- The Jurassic sedimentary environment of Yanqi Basin has lots of deep-water sedimentary features in coal-bearing beds.
對新疆焉耆盆地沉積環(huán)境的研究發(fā)現，其侏羅系含煤系地層具有大量深水沉積特征，與傳統淺水成煤的觀(guān)點(diǎn)相悖。 - Therefore, the Duolun basin is not an impact crater, instead its formation was related to the volcanic eruption during the late Jurassic Period.
因此，多倫盆地不是撞擊形成，而與晚侏羅系上統火山噴發(fā)有關(guān)。
