请问这句话中第一个due,due this month,due和这一小句是什么意思?

题目

请问这句话中第一个due,due this month,due和这一小句是什么意思?
This summer,however,Branca became preoccupied with Jackson's massive $300 million bank debt,due this month,against the estate's crown jewel -- one-half interest in Sony/ATV Music Publishing that comes due next month.

答案

due this month本月到期
due next month下月到期