The if version just feels easier to process than the version with unless.

使用if的版本比使用unless的版本感觉更容易处理。

youdao

If that passes,then a compromise would be needed with the House version.

VOA: special.2009.11.13

So if you want to use a Revised Standard Version, that is other than the New Revised Standard Version,that's fine.

如果你想要修订标准版，而不是新标准修订版，也可以。

耶鲁公开课 - 新约课程节选

Some people asked me, if they bought the earlier version of the text, you can find the translation to the earlier version of the text on these question numbers.

有人问我，如果他们买了这本书的早期版本，你们找到这本书早期版本的翻译,关于这些问题的数字。

麻省理工公开课 - 固态化学导论课程节选

Which would not be good if a version of Angry Birds got into the flight navigation computer for example.

FORBES: Boeing Replaces Humans With Potatoes: No, Nothing To Do With The Irish

The bill's fine print makes it clear who the winners and losers will be if a version of Waxman-Markey becomes law.

FORBES: Commentary

However, the record attempt was almost wrecked from the start as the servers handling the downloads collapsed under the weight of visitors checking to see if new version was available.

BBC: Firefox claims download success