只因逗号错置，损失了100万美元。

A million dollars had been lost because of a misplaced <em>comma</em>.

在他的名字前加一个逗号。

Put a <em>comma</em> before his name.

一个逗号也没有漏掉。

Not a <em>comma</em> was left out.

在结束语后面用逗号。

End the closing with a <em>comma</em>.

逗号是一种标点符号。

<em>Comma</em> is a kind of punctuation.

为什么不使用连续逗号呢？

Why not use the serial <em>comma</em>?

我们可以省略这个逗号吗？

Can we leave this <em>comma</em> out ?

参数值是用逗号分隔的。

Parameter values are <em>comma</em>-delimited.

行可以在逗号之后继续。

Lines can be continued after a <em>comma</em>.

使用逗号分隔字段名称。

Field names are separated by a <em>comma</em>.