Septennial
a. 延续七年的, 每七年一次的
🗣️ 情景例句
I was the same way.
我当年也是这样。
I've never read a more exciting story.
我没有读过比这更振奋人心的故事。
The settlers built railways across the plains and began to hunt even more bison.
殖民者在平原上修起了铁路，于是开始猎取更多的野牛。