a matter of indifference meaning in English

无所谓的事

This should not be a matter of indifference to you
这对你而言不能说是无关紧要的事。
To him the presence or absence of his wife s sister was a matter of indifference
对他来说，小姨子来不来，与他无关。
To him , the presence or absence of his wife ' s sister was a matter of indifference
他小姨子来也好，不来也好，他都无所谓。
But certainly , for us who understand life , figures are a matter of indifference
当然，对我们懂得生活的人来说，我们才不在乎那些编号呢！