Dioestrum
n. 间情期(雌性动物发春期的间隔期间)
🗣️ 情景例句
But first in the school-rooms.
但首先是在教室 。
How long will your offer hold good?
一般你们报盘的有效期是多长？
It has to be tall because it is like a giant block and tackle,
井架必须很高，因为它像一个巨型滑轮组。