choline

/ˈkoʊliːn/

Meanings

noun

胆碱，维生素B4

A hydroxy quaternary ammonium compound with formula (CH3)3N+CH2CH2OHX−. It is an essential nutrient for cardiovascular and brain health and for cell membrane formation.

Examples :

"To support her baby's brain development, the pregnant woman made sure to eat foods rich in choline, such as eggs and beef liver. "

为了促进宝宝的大脑发育，这位孕妇特意多吃富含胆碱 (维生素B4) 的食物，比如鸡蛋和牛肝。

Related Words

compound noun

/ˈkɒmpaʊnd/ /ˈkɑmpaʊnd/ /kəmˈpaʊnd/

营地，集中营。

"The prisoners were kept in a secure compound. "

囚犯们被关在一个戒备森严的营地里。

hydroxy adjective

/haɪˈdrɒksi/ /haɪˈdrɑːksi/

羟基的，含羟基的

"Ethanol is a hydroxy compound used in hand sanitizers. "

乙醇是一种含羟基的化合物，常用于洗手液中。

development noun

/dɪˈvɛləpmənt/

发展，进展

"The development of this story has been slow."

这个故事的情节进展缓慢。

pregnant noun

/ˈpɹɛɡnənt/

孕妇，身孕的人。

"The pregnant woman in my history class is due in June. "

我历史课上的那个孕妇预产期在六月。

essential noun

/ɪˈsɛn.ʃəl/

必需品，要素。

"Salt is an essential for cooking a good soup. "

盐是熬一锅好汤的必需品。

membrane noun

/ˈmembɹeɪn/

膜, 薄膜

"The cell membrane controls what enters and leaves the cell. "

细胞膜控制着什么物质可以进入和离开细胞。

formula noun

/ˈfɔː.mjʊ.lə/ /ˈfɔɹ.mjə.lə/

公式，方程式

"The formula for calculating the area of a rectangle is length times width. "

计算长方形面积的公式是长乘以宽。

cardiovascular adjective

/ˌkɑːrdioʊˈvæskjələr/ /ˌkɑːrdioʊˈvæskjəlɚ/

心血管的

"Regular exercise is important for maintaining good cardiovascular health. "

经常锻炼对保持良好的心血管健康很重要。(Jīngcháng duànliàn duì bǎochí liánghǎo de xīnxuèguǎn jiànkāng hěn zhòngyào.)

ammonium noun

/əˈmoʊni.əm/

铵，铵根离子

"The chemistry teacher explained that ammonium, formed when ammonia gains a proton, is a key ingredient in many fertilizers. "

化学老师解释说，铵（也就是氨获得一个质子后形成的铵根离子），是很多肥料中的关键成分。

quaternary noun

/kwəˈtɜːnəɹi/ /ˈkwɑːtɚˌnɛəɹi/

季化合物

"The cleaning spray contained a quaternary to effectively kill bacteria and viruses. "

这种清洁喷雾含有一种季化合物，能有效杀灭细菌和病毒。

nutrient noun

/ˈnjuː.tɹi.ənt/ /ˈnuː.tɹi.ənt/

养分，营养物。

"Vegetables are a good source of nutrients for a healthy diet. "

蔬菜是健康饮食中重要的养分来源。

formation noun

/fə(ɹ).ˈmeɪ.ʃən/ /fɔɹ.ˈmeɪ.ʃən/

结构，形态，队形

"The intricate formation of the puzzle pieces allowed the child to assemble a picture of a dog. "

这些拼图碎片精巧的结构让孩子能够拼出一张小狗的图画。