at home 与 put down 是咋意思?

at home在家put down 放下 镇压,记下1。I put it all down to her hard work and initiative。我把这一切归因于她工作又勤奋又主动。2。The bus stopped to put down some passengers。公共汽车停下来让一些旅客下车。3。Put down that knife before you hurt somebody!把那刀子放下,以免伤人!4。Our cat was getting so old and sick that we had her put down。我们的老猫病成这个样子,该把它杀掉了。