do not quite understand

I'm not quite sure where this term originated and I really don't understand why you would tell someone that before going out to do a show.

不是很确定这个术语的来历，不知道为什麽有人可以在演出出发前告诉别人。

Those are the issues that many people care about but do not quite understand. A compendious introduction is made in memory of the achievement of the century dream.

这是许多人关心而又不太了解的，笔者在文中做了扼要的介绍，以纪念世纪之梦的实现。

At home, 3-month-old Jack and 2-year-old Rachel do not quite understand what their parents are watching.

在家里, 3个月大的杰克和2 岁 大的瑞秋则不太了解他们的父母到底在看什麽.

'I do not quite understand,'returned the uncle, sipping his coffee.

“ 我不太明白, ” 叔父啜着咖啡说.