动词
中文翻译：无包装
同义词：
['unpack', 'unwrap', 'unbox', 'unseal']
例句：
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1.We need to unpack all the boxes and sort them by color.
我们需要打开所有的盒子，按颜色分类。
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2. The package arrived unsealed, so it was already opened.
包裹是未密封的，所以已经打开了。
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3. She unwrapped the gift paper to reveal a beautiful painting inside.
她揭开礼物纸，发现里面是一幅美丽的画。