她知道妈妈爱干净，总把小屋打扫得干干净净的。

She knows what a tidy woman mother is, and how clean she keeps the cottage.

youdao

它的表面还是干干净净的。

Its surface is still clean.

youdao

去工作的时候脸上刮的干干净净的是最合适的。

Showing up to work clean-shaven is always appropriate.

youdao

Now you have this situation where you have a droplet that is net negative or perhaps net positive.

现在的情况是那些液滴,可能是净负电，也可能是净正电。

麻省理工公开课 - 固态化学导论课程节选

So, if we think about the second case here where we have c n minus, now we're talking about a molecule with a net charge of negative 1.

那么，如果我们考虑的是第二个例子,也就是氰离子，那么现在我们讨论的是一个净电荷量为负一的分子。

麻省理工公开课 - 化学原理课程节选

so you can see that there is going to be two sets in antibonding, three sets in bonding for a net of one, giving us the single bond.

因此你能看到,反键轨道上有两组，三组成键，得到一组净成键，所以成的是单键。

麻省理工公开课 - 固态化学导论课程节选