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cerium

/ˈsɪəɹiəm/

Meanings
noun

铈 (shì)

A chemical element (symbol Ce) with an atomic number of 58, a very soft, ductile, silvery-white metal that tarnishes when exposed to air.

Examples :

"The chemist carefully handled the small sample of cerium, noting its silvery-white color before it began to tarnish in the air. "
这位化学家小心地处理着这小份铈样品，注意到它银白色的光泽，然后它就开始在空气中失去光泽了。
element material substance chemistry science

Related Words

Illustration ductile

ductile adjective

/ˈdʌk.taɪl/

有延展性的，可延展的

"The copper wire is very ductile, allowing it to be drawn into long, thin strands for electrical wiring. "

这种铜线非常有延展性，可以拉成长而细的丝，用来制作电线。

Illustration exposed

exposed verb

/ɪkˈspoʊzd/ /ɛkˈspoʊzd/

暴露，揭露，揭示

"The newspaper exposed the company's illegal dumping of waste. "

这家报纸揭露了该公司非法倾倒废弃物的行为。

Illustration symbol

symbol noun

/ˈsɪmbəl/

符号，象征。

"$ is the symbol for dollars in the US and some other countries."

$ 是美国和一些其他国家表示美元的符号。

Illustration element

element noun

/ˈɛlɪmənt/

要素，成分，元素。

"Letters are the elements of written language."

字母是书面语言的基本要素。

Illustration tarnish

tarnish noun

/ˈtɑɹnɪʃ/

锈迹，污点。

"The tarnish on the silver trophy made it look less impressive. "

银奖杯上的锈迹让它看起来不那么耀眼了。

Illustration chemist

chemist noun

/ˈkɛmɪst/

化学家，化学工作者

"The chemist carefully measured the ingredients for the baking soda volcano experiment in science class. "

那位化学工作者在科学课上小心地测量了小苏打火山实验的各种成分。

Illustration carefully

carefully adverb

/ˈkɛːfli/ /ˈkɛɹfli/

小心地，谨慎地，细致地

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

他小心地听着母亲的担忧，为她的失望感到难过。(Tā xiǎoxīn de tīngzhe mǔqīn de dānyōu, wèi tā de shīwàng gǎndào nánguò.)

Illustration silvery

silvery adjective

/ˈsɪlvəɹi/

银色的，银白的。

"The fish flashed its silvery scales as it jumped out of the water. "

鱼跃出水面时，闪耀着银色鳞片。

Illustration atomic

atomic noun

/əˈtɔm.ɪk/ /əˈtɒm.ɪk/ /əˈtɑː.mɪk/

原子操作，不可分割操作

"The bank's website uses an atomic operation to update account balances. "

银行的网站使用原子操作来更新账户余额。

Illustration handled

handled verb

/ˈhændl̩d/

触摸, 摸, 拿

"The cashier carefully handled the delicate glass ornament. "

收银员小心地拿着那个易碎的玻璃饰品。

Illustration chemical

chemical noun

/ˈkɛmɪkəl/

化学物质，化学品

"The scientist studied the chemical composition of the soil sample. "

这位科学家研究了土壤样本的化学物质组成。

Illustration tarnishes

tarnishes verb

/ˈtɑːrnɪʃɪz/ /ˈtɑːrnɪʃəz/

氧化，失去光泽

"Careful storage of silver will prevent it from tarnishing."

妥善存放银器可以防止它氧化失去光泽。