才是他们真实的存在 Is their true existence ; Are they really exist ; Is their real existence
他们是真的不存在 are they really not there
或许他们是真的存在 Perhaps they really exist
他们真的存在 are they really not there
他们真存在
They really exist.
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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