Dioestrum
n. 間情期(雌性動物發春期的間隔期間)
??? 情景例句
I guess we'll have to exchange it, too.
我想我們還得去換一件。
I don't think so.
我想不是。
About once a month. Not too often, because neither of us has much time. We both have too much work to do.
大約每月一次。不太經常寫信，因為我倆的時間都很緊。我們都有做不完的事。