It shows that the number of notional words increases with age especially noun, verb, adjective, quantifier and adverb and there are more monosyllabic words than double syllabic words.

通过统计分析发现，3-6岁儿童实词词汇量随着年龄增长而增加，名词、动词、形容词、量词、副词等增加的速度十分明显。

youdao

youdao

Modest words included modest appellation and modest adverb, and they were the reflection of etiquette culture.

谦敬词语包括谦敬称谓和谦敬副词，合乎古代礼仪的规范，是礼仪文化的反映。

youdao

It pours out, angrily, aggressively and if uglily were an adverb it would do that too.

BBC: Remembering the Pentagon attack

Get a stronger verb and you won't need an adverb, he would tell me.

CNN: How grading software fails students

Three of us stepped forward to speak, and act out, an adjective or adverb.

FORBES: Economics Lessons from the New Pre-Raphaelite Exhibit (Twinkies, Anyone?)