第二 + Adjective/Noun
第二 (dì èr) means "second" and is formed by placing the ordinal prefix 第 before the number 二. This pattern applies to all ordinal numbers in Chinese. For example, 第二名 means "second place" and 第二高 means "the second highest."
他是我们班跑得第二快的人。
tā shì wǒmen bān pǎo de dì èr kuài de rén.
He is the second fastest runner in our class.
这是她第二次来中国,上一次是三年前。
zhè shì tā dì èr cì lái zhōngguó, shàng yī cì shì sān nián qián.
This is her second time visiting China; the last time was three years ago.
中国是世界第二大经济体。
zhōngguó shì shìjiè dì èr dà jīngjìtǐ.
China is the world's second largest economy.
他是我们班跑得第二快的人。
tā shì wǒmen bān pǎo de dì èr kuài de rén.
He is the second fastest runner in our class.
这是她第二次来中国,上一次是三年前。
zhè shì tā dì èr cì lái zhōngguó, shàng yī cì shì sān nián qián.
This is her second time coming to China; the last time was three years ago.
中国是世界第二大经济体。
zhōngguó shì shìjiè dì èr dà jīngjìtǐ.
China is the world's second largest economy.