练习题

zhè xiē liàn xí tí biāo yǒu nán yì chéng dù

这些练习题标有难易程度。

The exercises are marked according to their level of difficulty.

tā jīn tiān xué xí de shù xué liàn xí tí hěn nán

她今天学习的数学练习题很难。

Those math exercises she learned today are very difficult.

měi dào lì tí hòu miàn yòu gēn zhe sān ge liàn xí tí

每道例题后面又跟着三个练习题。

There are also three problems follow each example.

zuò liàn xí tí

做练习题

do exercise

liàn xí tí xiáng jiě

练习题详解

answers to exercise