1. Male peacock: Bah, you are mean, old love sees my oestrus! 雄孔雀：呸，你们下流，老爱看我发情！
2. Bactrian camels have their own reproductive physiological characteristics such as seasonal oestrus and ovulation inducement. 双峰驼具有独特的繁殖生理机能，是季节发情、诱导排卵的动物。
3. Embryos were collected on Day 7 post oestrus and two breeds ewes produced a much higher proportion of morula, they were 66. 24% in Borderdale and 75. 78% in Poll Dorset. 配种后7天从波德代和无角陶赛特供体羊上所冲取的胚胎，以桑椹胚为最多，分别占回收总胚的66。24%、75。78%。
英英解释
n.
1. applies to nonhuman mammals: a state or period of heightened sexual arousal and activity
2. type genus of the Oestridae: sheep botflies
