劍橋詞典a list of instructions , especially on a computer screen , that is hidden until you open it (電腦屏幕上)下拉式菜單,下拉選項屏 Click "Tools", then select "Options" from the pull-down menu . 點擊“工具”,然后從下拉式菜單里選擇“選項”。 返回 pull-down menu