The 越。。。越。。。structure in Chinese language is used as comparative correlatives or adverbial comparatives. What does that mean? Well, let’s look at few examples.
Comparative correlatives are sentences where the first 越 usually precedes an adjective.
Yuè duō yuè hǎo
The more the better
Píngguǒ yuè dàyuè tián
The bigger an apple is, the sweeter it is
Adverbial comparatives are sentences where the first 越 usually precedes a verb.
Tā yuè pǎo yuè kuài
He ran faster and faster
Tā yuè chànggē xīnqíng yuè hǎo
As she was singing, her mood got better and better