speedometer set stem

例句：

1. 1. The car's speedometer is set to 60 mph.
   汽车的转速表被设置到60英里每小时。
2. 2. She adjusted the stem of her pen to write in a different font.
   她调整了笔尖，以在另一种字体上写字。
3. 3.The artist carefully set the stem of his brush to create a smooth stroke.
   艺术家小心翼翼地调整他的画笔尖端，以创造平滑的线条。