masticate

例句：

1. 1.The dog chewed on the bone for hours.
   那只狗咬了骨头好几个小时。
2. 2.The children were masticating the nuts.
   孩子们正在咀嚼坚果。
3. 3. She masticated the food thoughtfully before swallowing.
   她仔细咀嚼食物后才吞咽。