万人

wǒ men zhēng mù zhì yuàn zhě jié guǒ yǒu sì bǎi wàn rén yìng zhēng

我们征募志愿者，结果有四百万人应征。

We asked for volunteers and 4,000,000 of you have signed up.

tǐ yù chǎng li kěn dìng yǒu wǔ wàn rén zuǒ yòu

体育场里肯定有五万人左右。

There must have been around 50,000 people in the stadium.