been
[bɪn]
v.
用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去分词 ）;
在，存在;
不受干扰;
去过了;
be的过去分词;
例句:
-
The house seemed muted, hushed as if it had been deserted.
房子里似乎悄然无声，安静得好像已经没人在住一样。
来自柯林斯例句
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It had once been the home of a wealthy nobleman.
这里曾是一个有钱贵族的宅邸。
来自柯林斯例句
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These files have been zipped up to take up less disk space.
这些文档已经进行了压缩，以节省磁盘空间。
来自柯林斯例句
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There's been a big age and experience gap.
来自BBC
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This has been a really remarkable period of time.
来自BBC
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I have been speaking to my friend in Portugal.
来自BBC