1
a topaz
可数名词，指一颗具体的黄晶宝石。
She wore a beautiful topaz on her finger.
她手指上戴了一颗美丽的黄晶。
黄玉；黄晶
先理解核心含义，再看它在真实句子里的用法。
黄玉；黄晶
a yellow quartz
She wore a beautiful topaz on her finger.
她手指上戴了一颗美丽的黄晶。
一种铝和氟的硅酸盐矿物,常因杂质而着色
A silicate mineral of aluminium and fluorine, usually tinted by impurities.
一种黄色石英
a yellow quartz
通常为透明黄褐色的宝石,由该矿物切割而成
An often clear, yellowish-brown gemstone cut from this.
一种矿物(氟硅酸铝),呈各种颜色的晶体,用作宝石
a mineral (fluosilicate of aluminum) that occurs in crystals of various colors and is used as a gemstone
She wore a topaz necklace to the party.
她戴着一条黄玉项链去参加聚会。
The jeweler showed us a bright yellow topaz from Brazil.
珠宝商给我们看了一颗产自巴西的亮黄色黄玉。
These topazes vary in color from pale gold to deep orange.
这些黄玉的颜色从淡金色到深橙色各不相同。
可数名词，指一颗具体的黄晶宝石。
She wore a beautiful topaz on her finger.
她手指上戴了一颗美丽的黄晶。
不可数名词，指黄晶这种材料。
The necklace is made of topaz.
这条项链是黄晶制成的。
指黄晶所呈现的黄色。
The dress is a lovely topaz color.
这条裙子是可爱的黄晶色。
Not this
This necklace is topaz.
Use this
This necklace is made of topaz.
将名词'topaz'误用作形容词放在系动词后，应使用'be made of topaz'结构表示材料。
Not this
She bought three topaz.
Use this
She bought three topazes.
在表示具体多颗黄玉时，'topaz'为可数名词，复数形式为'topazes'；误用为不可数名词错误。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
蓝色黄玉
She wore a beautiful blue topaz pendant.
她戴着一枚漂亮的蓝色黄玉吊坠。
黄玉戒指
He gave her a topaz ring for their anniversary.
他在他们的周年纪念日送给她一枚黄玉戒指。
黄玉宝石
Topaz gemstone is often used in jewelry making.
黄玉宝石常用于珠宝制作。
金色黄玉
The golden topaz sparkled in the sunlight.
金色黄玉在阳光下闪闪发光。
黄玉项链
She received a topaz necklace as a birthday gift.
她收到了一条黄玉项链作为生日礼物。
天然黄玉
Natural topaz is more valuable than synthetic ones.
天然黄玉比合成黄玉更珍贵。
托帕兹是间谍组织的名字。
In Alfred Hitchcock's 1969 film 'Topaz', the word is used as the code name for a Soviet spy network.
在阿尔弗雷德·希区柯克1969年的电影《托帕兹》中，这个词被用作苏联间谍网络的代号。
Use topaz naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把topaz拆成'top'（顶部）和'az'（A到Z），黄玉是顶级的宝石，颜色丰富如从A到Z。
语域：neutral 常见场景：jewelry、mineralogy Topaz 作为宝石和矿物的名称，通常用于中性语境，常见于珠宝描述和矿物学讨论中。
真正押韵的词：jazz, as, has（结尾 /æz/）。拼写相似但发音不同的词：quartz（/kwɔːrts/），blaze（/bleɪz/，元音不同），gas（/ɡæs/，结尾辅音是/s/而非/z/）。
Dictionary facts from ECDICT, WIKTIONARY.