二十 (èrshí): twenty

Meanings

他今年二十岁。

Tā jīnnián èrshí suì.

He is twenty years old this year.

教室里有二十个学生。

Jiàoshì lǐ yǒu èrshí gè xuéshēng.

There are twenty students in the classroom.

grammar

Chinese numbers are built logically: 二 (two) + 十 (ten) = twenty. This pattern continues: 三十 (30), 四十 (40), etc.

二 èr

十 shí