highly通常不指实际的高度而主要用于程度,常用于由动词派生的形容词之前。

China is a highly civilized country.中国是一个高度文明的国家。
This is highly improbable.这是完全不可能的。
He speaks very highly of the boy's behavior.他称赞这个男孩的表现。
He thinks highly of the Tom's opinion.他极其赞赏汤姆的意见。

highly, high
参见high条。

［同义词］   decidedly, great, immensely, very