试题题干
Observation shows that it is much more common for word meanings to change in denotation from neutral to （） than it is for them to go the other way.
参考答案
正确答案：
试题解析
一个词很容易由中性词变到贬义词，反之却很难。
Observation shows that it is much more common for word meanings to change in denotation from neutral to （） than it is for them to go the other way.
一个词很容易由中性词变到贬义词，反之却很难。