这是个很普通的说法，表明“我知道……”或“我很熟悉……”某事。
This is a very common way to say, "I am aware of" or "I am familiar with" something.
我们都很熟悉这个说法，即所有物质都是由原子组成的。
We are familiar with the idea that all matters consists of atoms.
我们都很熟悉这个说法，即所有物质都是由原子组成的。
We are familiar with the idea that all matters consists of atoms.
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