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
when Teddy Roosevelt was President.
在Teddy Roosevelt当总统的时代。
Let me guess.
让我猜一猜。
After switching on powerful arc lights, they saw great stalagmites -- some of them over forty feet high -- rising up like tree-trunks to meet the stalactites suspended from the roof.