Chromium is a/an + noun
chromium 通常为不可数名词,作主语时谓语用单数。
Chromium is a metallic element.
铬是一种金属元素。
铬
chromiums — plural of chromium
先理解核心含义,再看它在真实句子里的用法。
铬
a hard brittle metallic element that resists corrosion and tarnishing
Chromium is a metallic element.
铬是一种金属元素。
A chemical element (symbol Cr) with an atomic number of 24: a steely-grey, lustrous, hard and brittle transition metal.
This stainless steel contains chromium, which gives it resistance to rust.
这种不锈钢含有铬,这使其具有防锈性。
Chromium is often added to alloys to make them harder and more durable.
铬常被加入合金中,使其更坚硬、更耐用。
The factory tests the water for chromium before releasing it.
工厂在排放水之前会检测水中的铬。
chromium 通常为不可数名词,作主语时谓语用单数。
Chromium is a metallic element.
铬是一种金属元素。
be resistant to 中的 to 是介词,后接名词、代词或动名词。
Chromium is resistant to corrosion.
铬耐腐蚀。
Not this
This spoon is made of a chromium.
Use this
This spoon is made of chromium.
铬是化学元素名称,作物质名词时不可数,前面不能加不定冠词 a。表示“由……制成”时直接用 chromium,不加冠词。
Not this
Chromiums are widely used in stainless steel.
Use this
Chromium is widely used in stainless steel.
元素名称 chromium 是不可数名词,没有复数形式,因此不能用 chromiums。作主语表示“铬这种物质”时应用单数谓语 is。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
铬钢
Chromium steel is widely used in the manufacture of bearings.
铬钢广泛用于制造轴承。
镀铬
The car's bumpers are given a layer of chromium plating to shine.
汽车保险杠经过镀铬处理以增加光泽。
六价铬
Exposure to hexavalent chromium can cause serious health problems.
接触六价铬会导致严重的健康问题。
氧化铬
Chromium oxide is often used as a green pigment in ceramics.
氧化铬常用作陶瓷中的绿色颜料。
铬合金
This knife is made from a strong chromium alloy.
这把刀是用坚固的铬合金制成的。
还有铬、钙、锔和铑。
This lyric, which names chromium, is from Tom Lehrer's 1959 song 'The Elements'.
这句歌词点名了铬,出自汤姆·莱勒1959年的歌曲《元素》。
Use chromiums naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想法:chromium(铬)常用来镀铬(chrome),镀层亮闪闪如镜,一见亮光就想起铬。
语域:formal 常见场景:化学课堂、材料科学文献、工业产品说明书 chromium 是化学元素铬的正式学名,通常用于教材、科研文章或工业说明等较为正式或技术性的语境;日常口语中较少直接使用,比较常见的是简称 chrome。
这些词都以 -ium 结尾,末尾的 -ium 都弱读为 /iəm/,这是它们与 chromium /ˈkrəʊmiəm/ 的相同点;但它们不都与 chromium 押韵。押韵要求重读元音及其后的所有音相同:sodium /ˈsəʊdiəm/ 虽与 chromium 重读元音相同,但后续辅音不同;calcium、stadium 等重读元音也不同。另注意 -ium 不要读成 /aɪəm/。
Dictionary facts from ECDICT, WIKTIONARY.