1. She is undiscerning in her choice of friends, often surrounding herself with negative influences.
她在选择朋友时缺乏辨别力，经常与负面影响为伴。
2. The undiscerning shoppers quickly bought into the marketing hype and ended up with products they didn't really need.
缺乏鉴赏力的购物者很快被市场宣传吸引，最终购买了他们实际上并不需要的产品。