dont really know
我真的不知道
以上为机器翻译结果，长、整句建议使用 人工翻译 。
I think so; I dont really know the story behind it.
我是这样认为的，但我真的不知道它的由来。
youdao
"For any of you that thought that he was going to get anything but 'Other than honorable' ... you really dont know jack about the military, " he wrote.
CNN: Marine discharged over online Obama comments
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