老

lǎo

prefix used before the surname of a person or a numeral indicating the order of birth of the children in a family or to indicate affection or familiarity, old (of people), venerable (person), experienced, of long standing, always, all the time, of the past, very, outdated, (of meat etc) tough

你是老了

nǐ shì lǎo le

You are old

老师说不

lǎo shī shuō bù

Teacher said no

老牛吃嫩草

lǎo niú chī nèn cǎo

Old cows eat tender grass

他是老师者。

tā shì lǎo shī zhě。

He is a teacher.

她就是老师。

tā jiù shì lǎo shī。

She is the teacher.

你想做个老师？

nǐ xiǎng zuò gè lǎo shī？

You want to be a teacher?

老师张开课本

lǎo shī zhāng kāi kè běn

The teacher opens the textbook

对不起老人家

duì bu qǐlǎo rén jiā

Sorry, old man.

我妈妈是老师

Wǒ māmā shì lǎoshī

My mom is a teacher.

我爸爸是老师

Wǒ bàba shì lǎoshī

My dad is a teacher.