It's a good habit to doggie bags in restaurants.

在饭店把没吃完的饭菜打包是个好习惯。

In some cities of China doggie bags are uncommon, and leftovers usually go to the dump.

中国有些城市，吃饭打包还不太被人接受，很多吃不完的东西就被当做垃圾扔掉。

We had a lot of food left over after dinner party; we asked the waitress for some doggie bags.

宴会后我们还剩下了许多食物，于是我们向服务员要了一些方便袋。