过去，我认为不同国家的差别很大。
In the past, I thought the cultures of different countries were very different.
但是，认真考虑之后，我发现有一些共同点。
But after thinking carefully, I discovered that cultures do indeed have some things in common.
比如，大部分人都会去旅游，看看世界。
For example, most people travel and go see the world.
在一些国家，拥抱和握手是重要的礼貌。
In some countries, hugging and shaking hands are fairly important forms of politeness.
但是，有些地方的人，他们可能不喜欢拥抱。
But people in some places are rather modest, and they may not like hugging.
我以前这是不是真的。
I used to doubt whether this was really true.
后来，我去旅行，亲身感觉到了这种差异。
Later, I traveled to the countryside and personally felt this kind of cultural difference.
这了解很重要，我们不应该随便别人。
This shows that understanding culture is very important, and we should not casually criticize others.