know/understand what it means to be somethingUNDERSTANDto have experienced a particular situation, so that you know what it is like 知道/理解某事的滋味 I know what it means to be alone in a foreign country. 我知道独自一人身处异国是什么滋味。
know/understand what it means to be something• If you are overweight, then you know what it means to be in emotional pain.
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