do not know much about的意思|示意

Over the past few weeks, aircraft engineers have found they do not know quite as much about metal fatigue as they thought.

就在几周前，飞机工程师才发现他们并没有完全了解金属疲劳——四月一日，西北航空公司812航班使用的波音737-300型客机在从凤凰城飞往萨克拉门托的途中发现在机身的上半部有一个五英尺的裂纹，不得不紧急迫降。

We do not know much yet about the moon's mantle, that section of superheated rock which goes down hundreds of miles below the crust.

我们对月球地幔所知不多，那些过热的岩石在外壳几百英里以下。

Parents — you do not know much about such things.

双亲，这是你们不大知道的。

Or between two people do not know much about?

还是两个人之间的不甚了解？

There is an increasing demand for people who are able to take in great area at a glance, people who perhaps do not know too much about any one field.

现在对那些一眼就能看懂大领域的人的需求越来越大，这些人可能对任何一个领域都不太了解。

I do not know much about the partisans.

我不知道的支持者了。