His past record weighs heavily against him.

他过去的记录对他很不利。

Her past record counts against her.

她过去的经历对她不利。

He's holding my past record over me.

他以我过去的记录来要挟我。

John's past record counts against him.

约翰的过去经历对他不利。

He always brage about his past record.

他总是大吹大擂他过去的记录。