Dump: a place where waste or rubbish/garbage is taken and left 垃圾场；废物堆
the municipal dump
市垃圾场
a toxic/nuclear waste dump
有毒／核废料堆
Uncommon: not existing in large numbers or in many places 不常有的；罕见的；稀罕的
an uncommon occurrence/experience
不寻常的事情／经历
Side effects from the drug are uncommon.
这药很少有副作用。
It is not uncommon for college students to live at home.
大学生住在家里并不少见。
Red squirrels are uncommon in England.
红松鼠在英格兰很少见。
