Cambrian period
[机] 寒武纪
🧩 词语组成解析
a. 寒武纪的\\nn. 寒武纪, 威尔士人, 寒武系
period
['pɪrɪəd]
n. 时期;（一段）时间;学时;句号;
adj. 具有某个时代特征的;（关于）过去某一特定历史时期的;（家具、服饰、建筑等）某一时代的;
peri周围，靠近+od道路→周期
🗣️ 情景例句
how would you do it?
你怎么说？
A good horse often needs a good spur.
好马常要好靴刺。
We are all very excited and are looking forward to the Olympic Games because they have never been held before in this country.
我们都非常激动，盼望着奥运会的到来，因为在这个国家里还从未举办过奥运会。