There are two versions of the game, a long one and a short one.
这游戏有两个版本，一长一短。
There are two versions of the code.
有两个代码的版本。
There are two versions of the message descriptor.
消息描述符有两个版本。
First off, you need to know that there are two versions of DoubleTwist.
首先，你得知道有两个版本的双推。
There are two versions of your book-the "Standard" and the "Pro" versions.
你的书会有两种版本—“标准版”和“专业版”。
There are subtle differences between the two versions.
两个版本之间有一些细微的差异。
There are two variations of stream API: the push and pull versions.
流式api有两种形式：推式和拉式。
There are two variations of stream API: the push and pull versions.
流式api有两种形式：推式和拉式。
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