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melatonin

/ˌmɛləˈtoʊnɪn/

Meanings
noun

褪黑素, 褪黑激素

A hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals

Examples :

"Many people take melatonin supplements to help them fall asleep more easily at night. "
很多人服用褪黑素补充剂，以帮助他们更容易在晚上入睡。
physiology biochemistry medicine biology substance body organ

Related Words

Illustration mammals

mammals noun

/ˈmæməlz/

哺乳动物

"My pet cat is a mammal, and so are my dogs. "

我的宠物猫是哺乳动物，我的狗也是。

Illustration secreted

secreted verb

/ˈsiːkɹətɪd/ /sɪˈkɹiːtɪd/

保密，隐藏

"The shy student secreted the note under his desk, hoping no one would see it. "

那个害羞的学生把纸条藏在桌子底下，想让谁都看不见，以此保密。

Illustration material

material noun

/məˈtɪəɹɪəl/ /məˈtɪɹi.əl/

材料， 材质

"Asphalt, composed of oil and sand, is a widely used material for roads."

沥青是由石油和沙子组成的，是一种广泛使用的道路材料。

Illustration chemistry

chemistry noun

/ˈkɛm.ɪ.stɹi/

化学，化学科学。

"The chemistry class focused on how different elements combine to form new substances. "

化学课的重点是不同的元素如何结合形成新的物质。

Illustration involved

involved verb

/ɪnˈvɒlvd/ /ɪnˈvɑlvd/

卷入，缠绕，涉及。

"The gardener involved the climbing roses around the arbor. "

园丁将攀援玫瑰缠绕在凉亭上。

Illustration stimulates

stimulates verb

/ˈstɪmjuleɪts/

刺激，激励

"The smell of coffee stimulates me to wake up in the morning. "

咖啡的香味刺激我早上醒来。

Illustration reproductive

reproductive noun

/ˌriːprəˈdʌktɪv/ /ˌrɛprəˈdʌktɪv/

繁殖者，生殖者

"The scientist studied the reproductive cycle of the fruit flies in her lab. "

那位科学家在她的实验室里研究果蝇的繁殖者的生命周期。

Illustration reptiles

reptiles noun

/ˈrɛptaɪlz/ /ˈrɛptɪlz/

爬行动物， 爬虫类

"The zoo has a special building just for reptiles, like snakes and lizards. "

动物园里有一个专门的建筑，用来饲养爬行动物，比如蛇和蜥蜴。

Illustration related

related verb

/ɹɪˈleɪtɪd/

讲述，叙述.

"Please relate the circumstances of your journey here today."

请你详细讲述一下你今天来这里的经过。

Illustration serotonin

serotonin noun

/ˌsɛɹəˈtəʊnɪn/ /ˌsɛɹəˈtoʊnɪn/

血清素，5-羟色胺

"Exercise and spending time in nature can boost serotonin levels, leading to improved mood and a greater sense of well-being. "

运动和在大自然中度过时间可以提高血清素水平，从而改善情绪，增强幸福感。（运动和在大自然中度过时间可以提高血清素水平，血清素这种物质能让人感到快乐和安全，从而改善情绪，增强幸福感。）

Illustration hormone

hormone noun

/ˈhɔːməʊn/ /ˈhɔːɹmoʊn/

激素，荷尔蒙

"The hormone adrenaline was released into her bloodstream, causing her heart to race as she prepared for the big presentation. "

肾上腺素这种激素释放到她的血液中，使她在准备重要演讲时心跳加速。

Illustration supplements

supplements noun

/ˈsʌpləmənts/ /ˈsʌplɪmənts/

补充剂，补品

""Because she wasn't getting enough vitamins from her diet, the doctor recommended she take daily supplements." "

由于她的饮食无法摄取足够的维生素，医生建议她每天服用补充剂。