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(xiàng)屏 Click "Tools", then select "Options" from the pull-down menu . 點(diǎn)擊“工具”，然後從下拉式菜單裡選擇“選項(xiàng)”。 返回 pull-down menu