竖笛在英语中可以称作"vertical flute"。这个词来源于拉丁语，"vertical"表示竖直的，"flute"表示笛子。例如：

The musician played a beautiful melody on his vertical flute.（那位音乐家用他的竖笛演奏了一支美妙的曲子。）

The vertical flute is a traditional instrument in many Asian cultures.（竖笛是许多亚洲文化中的传统乐器。）

The sound of the vertical flute is soothing and calming.（竖笛的声音令人舒适和镇定。）