记忆方法
连起来就是：一个基因繁殖出了一个国家，造就了一个generation。
你也可以理解为一个国家有一个国家的性格、文化基因。
事实上也确实是，这种国家的文化也决定了一个国家内部的每个人的总体公约性格，不然我们怎么会说德国人总体比较严谨、日本人比较死板，而中国人比较灵活呢？
双解例句
小知识
A generation can refer to a group of people who live at the same time and are about the same age. But generation is also the act of creating something, such as income, ideas or kids.
In 1965, Pete Townsend, the guitarist of The Who, wrote a song called “My Generation.” The Who, Jefferson Airplane, Jimi Hendrix and other popular musicians of the day were called “the Woodstock Generation,” because they performed at a famous music festival in Woodstock, New York. Generation is used in another way when people credit those bands — along with Elvis, the Beatles and the Rolling Stones — with the generation of rock-and-roll culture.
实用短语
常用短语
单词用法
power generation 发电，发电量；发电机设备
from generation to generation 代代相传
third generation 第三代
这三个词的共同意思是“时期”。其区别是：
period是这组词中最一般的常用术语，用于任何时限，时间可长可短；
age意为“时代，寿命”，常用来表示以一个中心人物或显著特征而闻名的时期；
generation意为“代、世代”，用于上辈出世与下辈出世之间的时段，对人类来说这段时间有时可算作20年或25年，也可用于下辈本身。
例如：
The period in which people learnt to make tools of iron is called the Iron Age.
人类学会用铁制造工具的时代，我们称为“铁器时代”。
My generation behaves differently from my father?s and grandfather?s.
我这一代人和我父辈及祖辈表现不同。
同义词
year / day / production / formation / time / productivity
同根词
词根：generate
adj.generative生殖的；生产的；有生殖力的；有生产力的
generational一代的；生育的
n.generator发电机；发生器；生产者
vt.generate使形成；发生；生殖