求翻译：对她们未签合同之前，长期在同一单位工作的时间，向当地劳动保障监督部门投诉，给她们补交托欠的各种保险费，为她们创造良好的工作环境。是什么意思？

Before they did not sign a contract for a long time in the same unit of work, labor protection supervision departments to local complaints, due to a variety of care they pay insurance premiums, as they create a good working environment.

They did not sign the contract, before the long-term in the same unit of time, work to the local labor security monitoring complaints and to give them a variety of premiums, and arrears to pay for them a good working environment.

Has not signed in front of the contract to them, in the identical unit work time, sues for a long time to the local work safeguard surveillance department, makes additional payment in arrears to be in arrears finance each kind of insurance premium to them, is they creates the good working conditions

Before they did not sign the contract, long-term work in the same unit of time, complain to the local supervisory departments of labor security, giving them various premium support owed in arrears, for them to create a good working environment.

Before they did not sign the contract, long-term work in the same unit of time, complain to the local supervisory departments of labor security, giving them various premium support owed in arrears, for them to create a good working environment.