Doing housework costs a lot of time, which is not good for students' study.

The main aim of students is to concentrate on study.

everyone has his own task, for student, the task is study. if one can't complete his own work, he will not succeed doing the other tings.

housework is energy-consuming. students' study is very difficult and they have a lot of pressure. doing housework is not good for them.

现在先想出这几条,等下再帮你想想.

Doing housework costs a lot of time, which is not good for students' study.

The main aim of students is to concentrate on study.

everyone has his own task, for student, the task is study. if one can't complete his own work, he will not succeed doing the other tings.

housework is energy-consuming. students' study is very difficult and they have a lot of pressure. doing housework is not good for them.

现在先想出这几条,等下再帮你想想.