Today's smart phones have multiple layers of defense.
现在的智能手机都具有多层防御。
If your needs are more particular you may not need multiple layers of abstraction.
如果你的需求更加特别，那么你就不需要多层的抽象了。
System file is made of multiple layers, multiple files.
体系文件是由多层、多种文件构成的。
Kneeling, in Chinese culture, is a complex social act with multiple layers of meaning.
下跪，在中国文化里是一种复杂的社会行为，有着多层含义。
In complex applications, there are often multiple layers of application software as well.
在复杂的应用程序中，也存在多种应用程序层。
In complex applications, there are often multiple layers of application software as well.
在复杂的应用程序中，也存在多种应用程序层。
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