"When you have a situation like this occur, you are bound to have a situation down the line where there could be a shortage in food, which can also trigger other negative situations, such as malnutrition, for example, or insufficient food for cattle, which is also another important economic sector in West Africa,".
VOA: standard.2009.09.08
So for example, that might have a formal charge of negative 1, because to some extent it has gained that much electron density that it now has a formal charge that's negative.
比如,可能它的形式电荷为负一,因为在一定程度上它得到了这么多的共用电子密度,那么它现在就有了负的形式电荷。
So, for example, in a hydrogen atom, if you take the binding energy, the negative of that is going to be how much energy you have to put in to ionize the hydrogen atom.
例如在氢原子里面,如果你取一个结合能,它的负数就是。
So what she's talking about here, for example, is that positive emotions help us overcome negative emotions.
她谈到的问题包括,积极情绪有助我们克服消极情绪。
For example, do you think that ? mortgage will have a negative impression?
举个例子,你认为,抵押贷款将会产生消极影响么?
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