1) to have a good grip on a matter
对事情有深刻了解
2) have a good grip of a problem
深刻了解一问题
3) chew over a matter
对事情深思熟虑
4) a profoundawareness of the problem
对问题的深刻理解
5) I know her slightly.
我对她稍有了解.
6) not able to make heads or tails of something; unable to figure something out
不了解事情的始末
补充资料：对事
1.犹对质。 2.合适;相称。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条