I retained much of what I learned in college.

我还记得大学里学到的大部分知识。

The family sold the house but retained the land.

这家人卖掉了房子，但保留了那块地。

Unsurprisingly, Amazon founder Jeff Bezos retained the top spot with a net worth of $115 billion.

毫无悬念，亚马逊创始人杰夫·贝佐斯以净资产1150亿美元蝉联榜首。

She retained a number of copies for further annotation.

她为进一步解释保留了好多复印件。

This information is no longer retained within the computer's main memory.

这样的数据不再保留在计算机的主存储器中。

He retained a childlike sense of wonder.

他仍然有一种孩子般的好奇感。

She has retained her No.1 world ranking.

她保住了自己世界第一的排名。

She retained her tennis title for the third year.

她第三年保住了网球冠军的头衔。