无数 + Noun
无数 (wúshù) means 'countless' or 'innumerable.' It is used to emphasize that something is so numerous it cannot be counted. It functions as an adjective or determiner placed before a noun.
她为这个项目付出了无数的心血。
tā wèi zhège xiàngmù fùchū le wúshù de xīnxuè.
She poured countless efforts into this project.
夜空中有无数颗星星在闪烁。
yèkōng zhōng yǒu wúshù kē xīngxīng zài shǎnshuò.
Countless stars are twinkling in the night sky.
无数游客慕名来到这个古镇参观。
wúshù yóukè mùmíng lái dào zhège gǔzhèn cānguān.
Countless tourists come to visit this ancient town, drawn by its reputation.