这个锅盖是用不锈钢做的。

This pot lid is made of ___stainless steel.

他的道德品质无可挑剔，堪称楷模。

His ___stainless character makes him a role model for everyone.

她的声誉从未受到质疑，因为她有着无可指摘的道德品质。

Her reputation remained ___stainless as she upheld impeccable moral standards.