“腰部的”用英语怎么说？

长途驾驶时，腰部的支撑十分重要。Lumbar support is very important if you're driving a long way.赤道是一条假想的环绕地球腰部的线。The equator is an imaginary line around the middle of the earth.她腰部的疼痛好多了,基本感觉不到了.The pain in her lower back subsided le...