UML 2 supports either, and which one to use is a matter of preference.

UML 2 都支持它们，但是使用它们中的哪一个取决于您个人的偏好。

youdao

However, that's a matter of preference and it's not absolutely necessary.

不过，这是一个见仁见智的问题和它不是绝对必要的。

youdao

It is a matter of preference though - as long as its the same on client and server.

不过，这只是个人喜好的问题——只要在服务器端和客户端相同就可以了。

youdao

They are a matter of preference, not libertarian principle.

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In sum, the growth of sprawl is not just a matter of personal preference.

ECONOMIST: Urban sprawl

The choice, and the reasons behind that choice, are a matter of individual preference.

ECONOMIST: Social insecurity