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ovulation occurs [time phrase]
ovulation 作名词用；描述排卵发生的时间时，常用 occurs/happens。
Ovulation usually occurs midway through the menstrual cycle.
排卵通常发生在月经周期中途。
排卵
ovulations — plural of ovulation
先理解核心含义，再看它在真实句子里的用法。
排卵
ovulation
Ovulation usually occurs midway through the menstrual cycle.
排卵通常发生在月经周期中途。
卵子从卵巢排出；排卵。
The release of an ovum from an ovary.
Ovulation usually occurs about two weeks before the next period starts.
排卵通常发生在下一次月经开始前两周左右。
She uses an app to track her ovulation and plan her schedule.
她用一款应用记录自己的排卵情况，并据此安排日程。
Lack of sleep can delay ovulation and lead to irregular cycles.
睡眠不足可能推迟排卵，并导致周期不规律。
ovulation 作名词用；描述排卵发生的时间时，常用 occurs/happens。
Ovulation usually occurs midway through the menstrual cycle.
排卵通常发生在月经周期中途。
during 是介词，后面接名词，表示“在……期间”。
Some women feel mild pain during ovulation.
有些女性在排卵期间会感到轻微疼痛。
在医学语境中，常用 stimulate ovulation 表示用药物等手段促使排卵。
Doctors may use medication to stimulate ovulation.
医生可能会用药物来刺激排卵。
Not this
Women usually ovulation once a month.
Use this
Women usually ovulate once a month.
中文的“排卵”可作动词，但英语中 ovulation 是名词，动词是 ovulate。作谓语时应用动词形式。
Not this
Ovulation usually happens at the middle of the menstrual cycle.
Use this
Ovulation usually happens in the middle of the menstrual cycle.
表示“在……中间”时，英文用 in the middle of，不用 at the middle of；“at”更常用于具体时间点或位置。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
排卵周期
A typical ovulation cycle lasts about 28 days, but it can vary by several days.
一个典型的排卵周期约为28天，但可能相差几天。
排卵期
Knowing your ovulation period can help you plan a pregnancy.
了解自己的排卵期有助于计划怀孕。
诱导排卵
Certain fertility drugs are used to induce ovulation.
某些促生育药物用于诱导排卵。
排卵测试
An ovulation test can tell you when the fertile window begins.
排卵测试可以告诉你易受孕窗口何时开始。
排卵痛
Some women feel a brief ovulation pain in the lower abdomen.
一些女性会感到下腹部有短暂的排卵痛。
Use ovulations naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
卵子叫ovum，想象它从卵巢‘溜’出来——ovu-lation，排卵。
语域：formal 常见场景：医学文献、科普文章、健康咨询 ovulation 是正式医学术语，多用于医学文献、科普文章或健康咨询等场合；日常口语中比较常见直接说“排卵”。
The listed words all rhyme with the stressed ending /leɪʃən/ of ovulation. Note that lookalikes with the root ovu- — ovulate /ˈɒvjʊleɪt/, ovary /ˈəʊvəri/, ovum /ˈəʊvəm/ — sound different and do not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.