noun 下载 🔗分享 精液,精子。 A sticky, milky fluid produced in male reproductive organs that contains the reproductive cells. Examples : "During artificial insemination, the veterinarian carefully collects the bull's semen for breeding purposes. " 在人工授精过程中,兽医会小心地收集公牛的精液,用于繁殖。 body organ physiology sex biology anatomy medicine human 与AI对话词汇游戏阅读练习