estrous cycle
US /ˈes.trəs ˌsaɪ.kəl/
UK /ˈiː.strəs ˌsaɪ.kəl/
名詞
發情週期
the recurring physiological changes induced by reproductive hormones in most mammalian placental females
範例:
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The veterinarian studied the mare's estrous cycle to determine the best time for breeding.
獸醫研究了母馬的發情週期，以確定最佳繁殖時間。
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Understanding the estrous cycle is crucial for successful animal breeding programs.
了解發情週期對於成功的動物繁殖計劃至關重要。