Estral cycle
= estrous cycle
🧩 词语组成解析
a. (雌性动物的)动情期的,求偶期的,有发情期特征的,(雌性动物的)性欲冲动的
cycle
['saɪkl]
n. 循环，周期;自行车;时代，一段时间;整套;
vi. 周而复始，循环;骑自行车;轮转;
vt. 运转，循环;使轮转;
cycl =ring,circle,表示”圆,环”
🗣️ 情景例句
Well, it's too bad that you have to go.
真遗憾，你要走了。
Wisdom is a good purchase though we pay dear for it.
我们为了求知识，付出高价也值得。
After they carved the characters on rocks, they put a piece of wet paper on top of the characters and beat it lightly.
他们把字刻在石块上后，再把一张潮湿的纸放在字的上面，并轻轻地拍打。