Palaeozoic era的用法和樣例：
例句
- My professor studies flora of the Palaeozoic Era.
我的教授研究古生代的植物群。 - The extremely gentle slope of the large coal-accumulating basins in the Late Palaeozoic epicontinental seas in North China is believed to be good sites of coal accumulation.
華北晚古生代內陸表海大型聚煤盆地的極平坦的地勢是煤聚積的良好場(chǎng)所，而事件性海侵為泥巖沼澤發(fā)育及泥炭迅速得以保存最終形成煤層提供了條件。
