它的内部构成主要分为实体层、虚拟层和支持层。
Its internal structure can be divided into physical level, virtual level and support level.
人们被禁止使用虚拟货币购买实体商品。
People are forbidden to use virtual currency to buy real goods.
同时，您必须使用实体或虚拟环境来执行自动化测试。
You must also use a physical or virtual environment to run your automated tests.
电脑可以是实体电脑或虚拟电脑。
实体环境可能使用实体电脑或虚拟机器。
A physical environment might use physical computers or virtual machines.
实体环境可能使用实体电脑或虚拟机器。
A physical environment might use physical computers or virtual machines.
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