grind first

例句：

1. 1. The potatoes were groundinto a smooth paste.
   土豆被碾成了光滑的糊状物。
2. 2. Thechef used a grinderto make the meat finer.
   厨师用磨刀机把肉磨得更细。
3. 3. The coffee beans were groundfor instant coffee.
   咖啡豆被磨成粉末用于速溶咖啡。