Parents , these fun facts are to be stored for safe keeping .

家长们，这些有趣的知识可要好好保存哦。

He never sold the piece , keeping it in his home until his death in 1675 .

这幅画一直被他保存在自己家中，直到1675年他去世之后才开始出售。

Keeping roots in a vertical position allows the organism to save energy and remain fresh for a longer time .

在垂直位置上保存根类蔬菜能够使组织更节省能量，进而可以长时间保鲜。

The first part of this is keeping good records , something that seemed overwhelming and unnecessary to me at first .

其中第一点就是保存好记录，我起初认为这是令人压抑同时又不必要的事。

During the 1980s , ivy league colleges sometimes did so as well , but more recently have begun keeping these figures secret .

在1980s，常春藤盟校有时也会这样做，但是如今他们更常把这些数据秘密保存起来。