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limestone

/ˈlaɪmstəʊn/ /ˈlaɪmstoʊn/

Meanings
noun

石灰石，灰岩

An abundant rock of marine and fresh-water sediments; primarily composed of calcite (CaCO3); it occurs in a variety of forms, both crystalline and amorphous.

Examples :

"The white cliffs were made of limestone, a rock formed from ancient seashells. "
这些白色悬崖是由石灰石构成的，石灰石是一种由远古贝壳形成的岩石。
geology material substance mineral

Related Words

Illustration marine

marine noun

/məˈɹiːn/

海军陆战队员，水兵。

"He was a marine in World War II."

他二战时是一名海军陆战队员。

Illustration seashells

seashells noun

/ˈsiːʃɛlz/

贝壳，海贝

"My little brother collected seashells on the beach. "

我弟弟在海滩上捡了很多贝壳。

Illustration occurs

occurs verb

/əˈkɜːz/ /əˈkɝz/

发生，出现。

"The liftoff will occur in exactly twelve seconds."

发射将在十二秒后准时发生。

Illustration variety

variety noun

/vəˈɹaɪ.ɪ.ti/

多样性， 种类繁多。

"Variety is the spice of life."

多样性是生活的调味剂.

Illustration primarily

primarily adverb

/pɹaɪˈmɛɹəli/

主要地，首要地

"My brother is primarily a student; he spends most of his time studying. "

我弟弟主要是个学生，他大部分时间都在学习。

Illustration composed

composed verb

/kəmˈpəʊzd/ /kəmˈpoʊzd/

组成，构成。

"The editor composed a historical journal from many individual letters."

编辑将许多单独的信件汇编成了一本历史期刊。

Illustration amorphous

amorphous adjective

/əˈmɔɹfəs/

无定形的，不定形的，无固定形状的

"The enormous pile of spaghetti landed on the floor in an amorphous heap."

那一大堆意大利面落在地板上，像一个无定形的坨。

Illustration ancient

ancient noun

/ˈeɪn.ʃənt/

古人，老人

"The ancient librarian was known for her vast knowledge of history. "

这位年迈的图书管理员以她渊博的历史知识而闻名。

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。

Illustration abundant

abundant adjective

/əˈbʌn.dn̩t/ /əˈbn̩.dn̩t/

丰富的，充裕的。

"[W]ith their magical words they [poets] bring forth to our eyesight the abundant images and beauties of creation. — Leigh Hunt, On the Realities of Imagination"

凭借他们充满魔力的文字，诗人将造物界那丰富充裕的景象和美好展现在我们眼前。

Illustration sediments

sediments noun

/ˈsɛdɪmənts/ /ˈsɛdəmənts/

沉淀物，沉积物。

"The Nile delta is composed of sediment that was washed down and deposited at the mouth of the river."

尼罗河三角洲是由被冲刷下来并在河口沉积的泥沙构成的。

Illustration calcite

calcite noun

/ˈkæl.saɪt/

方解石， 碳酸钙。

"Many caves are formed from limestone, which is mostly made of the mineral calcite. "

许多洞穴是由石灰岩构成的，而石灰岩的主要成分是方解石这种矿物。