Paleozoic era
un. 古生代\\n
🧩 词语组成解析
a. 古生代的\\nn. 古生代
era
['iərə]
n. 纪元，年代;历史时期，时代;重大事件;
🗣️ 情景例句
There has been very little progress this term.
这学期没有什么进步。
Have you somewhat to do tomorrow,do it today.
明天如有事，今天就去做。
Usually we get on very well with each other.
通常我们相处得很好。