二十

tā lǐng dǎo gōng sī yǐ jīng èr shí duō nián le

他领导公司已经二十多年了。

He has led the company for over twenty years.

wǒ men zài tóng yī zuò fáng zi li zhù le èr shí nián le

我们在同一座房子里住了二十年了。

We have lived in the same house for twenty years.

wǒ jué de èr shí wèi kè rén jiù gòu le

我觉得二十位客人就够了。

Twenty guests are enough, I would have thought.

èr shí gè rén

二十个人

a score of people

dì èr shí

第二十

twentieth

gāi gōng sī yī nián chū bǎn èr shí zhǒng xīn shū

该公司一年出版二十种新书。

The company publishes twenty new titles a year.