In Paris, Rome and New York, where the rumble of garbage trucks is like background music and collection happens frequently, it is easy to toss things casually into the trash can.

• 在巴黎、罗马和纽约，垃圾车的轰隆轰隆声简直就像是固定的背景音乐，收垃圾的次数很频繁，你很轻易就可以把垃圾丢进垃圾箱里。