Word · Frequency #2917
D−'s
D；字母D
D−'s is the plural of d.
the 4th letter of the Roman alphabet
- 1.
Canonical decomposition
规范分解
- 2.
The semicircle on the baulk line, inside which the cue ball must be placed at a break-off.
在开球时,母球必须放置在球台上半圆区域内
- 3.
An academic grade given by certain institutions. Slightly better than a D and slightly worse than a C-.
某些机构给出的学术成绩,略好于D,略差于C-。
- 4.
An academic grade given by certain institutions. Slightly better than an E+ and slightly worse than a D. D minuses are sometimes the lowest passing grades.
某些机构给出的学术成绩,比E+稍好,比D稍差。D-有时是最低的及格分数
- 5.
District, as used in case citations.
用于案件引述中的地区。
- 6.
The penalty arc on a football pitch.
足球场上的罚球弧
- 7.
The penalty arc on a hockey field.
曲棍球场上的罚球弧
规范分解；在开球时,母球必须放置在球台上半圆区域内；某些机构给出的学术成绩,略好于D,略差于C-。；某些机构给出的学术成绩,比E+稍好,比D稍差。D-有时是最低的及格分数；用于案件引述中的地区。
In use
She wrote a small d next to her name on the list.
The password must contain at least one capital D.
My initial is D, short for Daniel.
the letter D
表示字母D本身，大写为D，小写为d。
The first letter of the word is 'd'.
这个词的第一个字母是d。
capital D
强调大写形式。
Please write your name with a capital D.
请用大写D写你的名字。
Connections
Collocations
- the letter D
- 字母D
- The word 'dog' starts with the letter D.单词'dog'以字母D开头。
- capital D
- 大写字母D
- Please write your name with a capital D.请用大写字母D写你的名字。
- small d
- 小写字母d
- The small d looks like a circle with a line.小写字母d看起来像一个圆加一条线。
Learner notes
Memory Tip
字母d形似弯弓，读音似'迪'。
Context & Register
字母d作为英语字母表第四个字母，通常用于拼写、排序、符号表示等中性场合，无特殊语体限制。
Grammar Note
表示罗马字母表中的第四个字母，常缩写为D。
Pronunciation & Spelling
Words beginning with 'd' followed by 'ee' share the same /diː/ sound as the letter 'd'. Note that 'd' in words like 'ad' (æd) or 'ed' (ɛd) is pronounced differently.
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.