The only evidence was cut into a tree and a fence: the letters C-R-O and the word Croatoan,C-R-O-A-T-O-A-N.

VOA : special.2009.08.17

Negative 1 plus 0 should add up to negative 1, if in fact, we're correct for the c n anion.

负一加上零应该等于负一，如果是这样，我们对于氰离子的结果就是正确的。

化学原理课程节选 : 麻省理工公开课

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。

化学原理课程节选 : 麻省理工公开课

She has led the Tennessee Lady Vols to first place in eight N.C.A.A.national championships.

VOA : special.2009.03.20

Another photograph like this is called "Mexican Dwarf in His Hotel Room in N.Y.C."

VOA : special.2009.08.09