动态图层（dynamic layers）：这是一项很强大的功能，可以提供图文定位、移动图文、控制显示或隐藏图片的功能，方便地实现各种特殊效果。
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saturated dynamic water-bearing sandy layers 饱和动态含水砂层
He believed in layers of management and many meetings that often kept Motorola from responding quickly to dynamic market circumstances.
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应用推荐
模块上移
模块下移
不移动