What you are saying may be true, but in this case it is completely beside the question.
你说的话也许是真的, 但与本题根本不相干.
《简明英汉词典》
She was known to have had personal problems unconnected with her marriage.
据悉,她有过一些与婚姻不相干的个人问题。
《柯林斯高阶英汉双解学习词典》
The people themselves weren't part of the conflict; they were just caught up in it.
那些人本来和这场冲突不相干,他们只是被牵涉进去的。
《柯林斯高阶英汉双解学习词典》
部分相干部分偏振矢量双曲余弦-高斯光束通过双焦透镜的传输特性
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And proceeds to make a decision based only tangentially on his response.
但随后做出的决定又和他们的回答毫不相干时。
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