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
Shopping vouchers are ofter a good means of attracting customers.
购物优惠券是吸引顾客的好方式。
Sorry, it's broken. You have to use the stairs.
对不起，它坏了，你只能走楼梯了。
He was obviously very nervous and for some minutes stood awkwardly before the microphone.
他显然非常紧张，局促不安地在麦克风前站了好几分钟。