Heptad
n. 七个, 成七的一组, 七价原子\\n[化] 七价物; 七价的
🗣️ 情景例句
I haven't got a clue on how to spend the National Day holiday.
如何度过国庆假期我还没有一点头绪。
The Spring Festival lasts half a month until the Lantern Festival comes.
春节要持续半个月左右，直到无宵节来为止。
The fact of first-rate importance is the predominant role that custom plays in experience and in belief, and the very great varieties it may manifest.
最重要的是，风俗在实践中和信仰上所起的举足轻重的作用，以及它所表现出来的极其丰富多采的形式。