but in fact each of them,但实际上随着时间推移

in fact其实； 事实上；实际上；确切地说

I think so; in fact, I am quite sure.

我想如此，事实上我非常确信。

He doesn't mind. In fact, he is even pleased.

他不介意，事实上，他甚至很高兴。

As it's passed through generations of users,经过了一代代测试对象的改进

pass through穿过； 透过； 流过； 经历

He has passed through unutterable agonies.

他已经历了有口难言的烦恼。

Trains pass through the lush countryside.

火车通过苍翠繁茂的乡下。

By the ninth generation, the words have been divided into parts到了第九代，单词已被分为几部分

divide into分为, 分成

The investigator will be divided into three groups.

所有的调查员将被分为三个小组。

The earth is divided into 24 time zones.

地球被分为二十四个时区。