existing problems短语⁶⁰⁷⁴⁴ 基本例句 存在问题 The wrong shoe can actually aggravate existing problems, causing pain in your feet, legs, knees or hips. Wearing shoes that have lost their cushioning may also lead to injury. 一双不合适的鞋子会加重你本身存在的不舒适感，引起脚部、腿部、膝盖甚至是臀部的疼痛，如果穿一双没有加防护垫的运动鞋更容易导致损伤。 yeeyan