音标:[,melә'tәunin] ;
[化] 褪黑激素; N-乙酰-5-甲氧基色胺
n. hormone secreted by the pineal gland
词型变化:名词复数形式 : melatonins
词性分布:
名词100%

melatonin的用法和样例:

例句

用作名词(n.)
  1. But the amount of melatonin in milk is small.但牛奶中的褪黑激素含量很少。
  2. He said sildenafil worked at least as well as melatonin, a jet-lag treatment.他还认为昔多芬的作用至少和目前用于治疗时差综合症的退黑激素的作用类似。

Humans are pegged to a 24-hour cycle. We're locked into it not just by day and nighttheres the master timepiece in the brain called the circadian clock. But it doesn't make sense to live by a 24-hour clock in the Arctic, where it's dark or light for

发表于:2018-12-24 / 阅读(82) / 评论(0) 分类 Scientific American(三)月

Without a doubt, artificial light has made our lives more convenient. In fact, our modern civilization would not be possible without Edisons invention. However, scientists are recently discovering that there is a dark side to the artificial light tha

发表于:2018-12-28 / 阅读(56) / 评论(0) 分类 轻松英文阅读

(WA) Did you ever wonder why it is that most people are programmed to sleep at night instead of during the day? If there's something about the cycle of light and dark that's telling us when to sleep, then shouldn't the sleep cycle of a blind person

发表于:2018-12-30 / 阅读(53) / 评论(0) 分类 托福听力短文

人类按照24小时一循环的作息规律来生活,是因为大脑中有昼夜节律钟的协调。 研究发现,驯鹿等北极动物,在北极持续数周白天或黑夜里生活时,是没有昼夜节律钟的。 How Its Internal Clock I

发表于:2019-01-02 / 阅读(102) / 评论(0) 分类 60秒科学

A Fish That 'Sings' Love Songs? 是一种唱情歌的鱼? This is the sound of a fish singing: 这是鱼唱歌的声音:嗯。。。 It is a male fish a plainfin midshipman, to be exact from the Pacific Ocean.He is singing, or humming, a love son

发表于:2019-01-12 / 阅读(142) / 评论(0) 分类 2016年VOA慢速英语(十)月

A Fish That 'Sings' Love Songs? This is the sound of a fish singing: Hmmmmmmmm. It is a male fish a plainfin midshipman, to be exact from the Pacific Ocean. He is singing, or humming, a love song to get female fish to come and visit the nest he built

发表于:2019-01-12 / 阅读(142) / 评论(0) 分类 2016年VOA慢速英语(十)月

SCIENCE REPORT – January 3, 2002: Seasonal Affective Disorder By George Grow This is the VOA Special English SCIENCE REPORT. Some people feel sad or depressed during the winter months in northern ar

发表于:2019-01-30 / 阅读(85) / 评论(0) 分类 科技之光

1. SLEEP NAKED 1.裸睡 As well heating you up too much, pyjamas can also be a distraction with tangled drawstrings, bunched-up bottoms and constrictive t-shirts. Maintaining a cool body temperature allows anti-ageing hormone Melatonin to do its work

发表于:2019-02-06 / 阅读(59) / 评论(0) 分类 阅读空间

Pre-Listening Vocabulary energized: feeling awake and ready to do something physical wardrobe: all of the clothing that you own serotonin: a chemical that affects ones moods melatonin: a hormone that helps you fall asleep endorphin: a hormone that ac

发表于:2019-02-08 / 阅读(83) / 评论(0) 分类 Facts-事实

Have you suffered from getting up? Are you a morning person? Well, Want to feel great and rejuvenated about life? After reading this post, you will know exactly how I (and many night owls) trained ourselves to wake up early, and also how your morning

发表于:2019-02-18 / 阅读(89) / 评论(0) 分类 阅读空间

脑白金到底是什么? 褪黑素,又名黑素细胞凝集素,俗称为脑白金,是存在于从藻类到人类等众多生物中的一种荷尔蒙,它在生物中的含量水平随每天的时间变化而变化。 Melatonin, sometimes ca

发表于:2019-02-24 / 阅读(66) / 评论(0) 分类 英语听力文摘 English Digest
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additional meaning
alkyl groups
American dogwood
Answers on a postcard
anthologically
appraisal of dutiable value
atresic
auxiliary network address
banted
battery discharge indicator
bavaro
be good for sth
Bowiean
calophya mangiferae
capriati a volturno
Casavieja
cerebral pneumatotherapy
clear of local anthorities
colour fixing agent Y
complishment
concatemer
Convention on the Law Applicable to Agency
copedant
Crista supracondylaris medialis
Curschmann's mask
desooter
detergent line
Dunbaria nivea
earthquake recurrence rate
echelon folds
economy rates
effective index
electric light treatment
electromagnetical
engine control system
ex-factor
firmer
fotografia
full replica simulator
generator tachometer
give the once over
hiding away
horizontal iron roller rice mill
hypertrophy of trigone and interureteric ridge
inlet velocity
intraband transmission
iterative computational method
Lake Crystal
light-for-date
logic equation simulation
lute music
magma igneous
micafolium
Middle English
minicomputer terminal controller
mllt
montpeliers
mosess
mud gun
multichannel detector
multichannel transmission
nauseous
nickel bas alloy
non-performing loans
nonaqueous electrochemistry
nonechoic chamber
notopteraria
nyame
obumbrans
Octamoxine
optic evagination
over partition connector
performance of propellant
physical property type transducer
pl/s
predilate
predominantly
property of linearity
quarry light
rainfall station
recycling process
resource center
sales supervision
Sir Clive Marles Sinclair
small-scope
spaddles
standardized program
stathmopoda fusciumeraris
stomachable
striated rock surface
stripper loin
take ... temperature
Tanen Taunggyi (Thanon Thong Chai)
tax planning scheme
thrombotic infarct
thrust bearing bush
ticket chopper
two - party system
unmercy
vole bacillus
Winnipegger
woodsiness