If the double quotation mark is the outermost quote, all variables are expanded.
如果最外边的引号是双引号，那么展开所有变量。
If the single quotation mark is the outermost quote, no variables are expanded.
如果最外边的引号是单引号，那么不展开变量。
To create an actual apostrophe, put two single quote marks side-by-side (") to produce one quote mark in your output."
要创建实际的省略号，将两个单引号并排放在一起()，从而在输出中生成一个引号。
I would venture to guess that if Deepak was to complete Mark Twain's quote, it would read something like this: "Name the greatest of all inventors. Accident-or not at all."
我大胆猜想一下，如果让狄巴克来完成马克·吐温的名言，可能会变成：“所有发明家中最伟大的那位叫，意外——或什么也不叫。”
To quote the great American humorist Mark Twain: "Buy land. They're not making it any more."
用著名的美国幽默作家马克·吐温的话说就是：“掏钱吧，土地不够用了。”
Sometimes all it takes is a fresh, rested pair of eyes to spot a missing semi-colon, or an extra quote mark, or to realize that the solution is much simpler than you originally thought.
有时候所需要的就是一双炯炯有神的双眼来发现一个丢失的分号，或者一个引号，或者要明白解决办法比你原先所想的要简单的多。
In honor of my mom, who was a teacher, I'm going to close with a quote from a beloved American author, Mark Twain.
我的母亲曾经是一位老师，为了感谢她，我准备引用我最爱的美国作家马克•吐温的一句名言来结束这篇文章。
To create an actual apostrophe, put two single quote marks side-by-side (') to produce one quote mark in your output.
要创建实际的省略号，将两个单引号并排放在一起()，从而在输出中生成一个引号。
Candidates who apply online should mark "For application of Experimental Officer" on the envelope and quote the online application number on the copies of every page of supporting documents.
网上申请人请于信封面上注明“申请学术主任职位”及于文件副本每一页注明网上申请编号。
Candidates who apply online should mark "For application of Experimental Officer" on the envelope and quote the online application number on the copies of every page of supporting documents.
网上申请人请于信封面上注明“申请学术主任职位”及于文件副本每一页注明网上申请编号。
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