an average

• 平均起来； 一般说来

an average的用法和样例：

例句

1. Average one out of ten travelers is killed or robbed by bandits on the road.
   平均起来，十名旅行者当中就有一名被路上的强盗打劫杀害。
2. A statistician can have his head in an oven and his feet in ice, and he will say that on the average he feels fine.
   一个统计学家能把头在伸进火炉里，脚放在冰里，他会说平均起来他感觉好极了。
3. Generally, a book has an introduction.
   一般说来，书都有绪论。
4. Is this word a countable noun or an uncountable noun?
   一般说来，这里我们用代词来代名词。