试题题干
Translate the following sentence into Chinese.
Americans throw away 80 billion bottles and cans each year, enough to build more than ten stacks to the moon.
参考答案
试题解析
考点：throw away 扔掉；enough to 足够；more than 超过；stack (n.) 堆，此处指垃圾堆。
句子结构：主句为Americans throw away 80 billion bottles and cans each year，enough to···为省略了which is的定语从句。