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naphthalene

/ˈnæfθəliːn/ /ˈneɪfθəliːn/

Meanings
noun

萘, 卫生球

A white crystalline hydrocarbon manufactured from coal tar; used in mothballs.

Examples :

"Grandma used naphthalene to keep moths away from her woolen sweaters. "
奶奶用萘丸（卫生球）来防止蛾子蛀她羊毛衫。
compound substance chemistry material science

Related Words

Illustration hydrocarbon

hydrocarbon noun

/ˈhaɪdroʊˌkɑːrbən/ /ˈhaɪdrəˌkɑːrbən/

碳氢化合物，烃。

"Gasoline is a hydrocarbon fuel used in many cars. "

汽油是一种碳氢燃料，很多汽车都在使用。

Illustration grandmother

grandmother noun

/ˈɡɹæn(d)ˌmʌðə(r)/ /ˈɡɹæn(d)ˌmʌðɚ/

奶奶，外婆

"My grandmother taught me how to bake cookies when I was a child. "

我小时候，奶奶/外婆教我怎么烤饼干。

Illustration sweaters

sweaters noun

/ˈswɛtərz/ /ˈswɛɾərz/

毛衣，运动衫

"After the basketball game, the players put on their sweaters to stay warm on the chilly bus ride home. "

篮球比赛结束后，球员们穿上他们的运动衫，在寒冷的回家巴士上保暖。

Illustration benzene

benzene noun

/ˈbɛnziːn/

苯， 苯环

"The chemistry student learned that benzene is a ring-shaped molecule containing carbon and hydrogen atoms, often used in making plastics and other industrial chemicals. "

化学系的学生学到，苯（苯环）是一种环状分子，由碳原子和氢原子构成，常用于制造塑料和其他工业化学品。

Illustration mothballs

mothballs noun

/ˈmɔθˌbɔlz/ /ˈmɑθˌbɔlz/

樟脑丸, 卫生球。

"My grandmother puts mothballs in her closet to protect her winter coats from moths. "

我奶奶在衣橱里放樟脑丸，保护她的冬大衣不被蛾子咬坏。

Illustration woolen

woolen noun

/ˈwʊlən/

毛织品，羊毛衫

"Put all the woolens in this basket."

把所有毛织品都放在这个篮子里。

Illustration containing

containing verb

/kənˈteɪnɪŋ/

包含，容纳。

"The box containing my old toys was stored in the attic. "

装有我旧玩具的箱子被储存在阁楼里。

Illustration grandma

grandma noun

/ˈɡɹænmɑː/

奶奶，外婆

"My grandma always makes the best cookies. "

我的奶奶总是做最好吃的饼干。

Illustration aromatic

aromatic noun

/æ.ɹəˈmæt.ɪk/

香料, 香草

"Grandma used a generous amount of aromatic in her famous spaghetti sauce. "

奶奶在她著名的意面酱里放了大量的香料。

Illustration bicyclic

bicyclic noun

/ˌbaɪˈsɪklɪk/ /ˌbaɪˈsaɪklɪk/

双环化合物，二环化合物。

"Sentence: "The scientist studied a bicyclic compound used in a new type of medicine." "

这位科学家研究了一种新型药物中使用的双环化合物。

Illustration manufactured

manufactured verb

/ˌmænjʊˈfæktʃəd/ /ˌmænjəˈfæktʃɚd/

制造, 生产.

"The factory manufactured thousands of toy cars every day. "

这家工厂每天制造成千上万辆玩具汽车。

Illustration crystalline

crystalline noun

/ˈkɹɪst.əl.aɪn/

结晶体，晶体。

"The jeweler carefully inspected each crystalline before setting it in the ring. "

珠宝匠在将每颗晶体镶嵌到戒指上之前，都仔细地检查了一遍。