例句：Parents should tell their children to be careful when they are swimming in the river,仿照造
问题描述：
例句：Parents should tell their children to be careful when they are swimming in the river,仿照造
答
家长告诉他们的孩子在他们在河里游泳的时候要小心点。
答
You should tell your classmates to be careful when they are visiting another city.