A slipped disc occurs when the jelly-like disc of cartilage that acts as a cushion between two vertebrae in the spine, slips or prolapses so it is pressing on the nerves causing the muscles of the back to go into spasm.是什么意思_A slipped disc occurs when the jelly-like disc of cartilage that acts as a cushion between two vertebrae in the spine, slips or prolapses so it is pressing on the nerves causing the muscles of the back to go into spasm.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句