mat down

• 压紧； 压成一团

mat down的用法和样例：

例句

1. The child packed the sand down with his shovel.
   小孩用铲子将泥沙压紧。
2. If you pack those clothes down,we can get more into the case.
   你如果把那些衣服压紧些，我们就还能往这箱子里多装些东西。