comma

comma汉语翻译：
n. 逗点, 逗号英语解释：
名词 comma:

a punctuation mark (,) used to indicate the separation of elements within the grammatical structure of a sentence

anglewing butterfly with a comma-shaped mark on the underside of each hind wing同义词：comma butterfly, Polygonia comma

例句：

The clause should be set off by a comma.这个从句应该用逗号隔开。

A comma is sometimes used to set off a clause in a sentence.逗号有时用来隔开一个句子中间的从句。

The two clauses are separated by a comma.这两个分句由一个逗号分开。

Stop quibbling about the use of the comma.别再争辩逗号的用法了。

详细解释：
com.ma
n.（名词）
Abbr. com.Grammar A punctuation mark (,) used to indicate a separation of ideas or of elements within the structure of a sentence.
缩写 com.【语法】 逗号：一种标点符号（,），用于表示句子结构内思想或要素的分开
A pause or separation; a caesura.
停顿或隔开；中止
Any of several butterflies of the genusPolygonia, having wings with brownish coloring and irregularly notched edges.
银纹多角蛱蝶：一种银纹多角蛱蝶 属蝴蝶，有棕色、带不规则V字形凹口边缘的翼
来源：
Latin
拉丁语
from Greek komma [piece cut off, short clause]
源自 希腊语 komma [切成的块，短分句]
from koptein [to cut]
源自 koptein [切]