Visitors are always amazed, the site manager says, to discover how much more there is to landfilling than tipping waste in a hole.

• 难怪垃圾掩埋场经理说，来这里参观的人无不惊异的发现，原来垃圾掩埋绝不是仅仅挖洞倒垃圾这么简单。