同学你好，该知识点来自沪江网校《新概念英语2、3、4册连读【天猫特惠】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
have sb do是“让某人做某事”
The boss often has them work for 14 hours a day.
老板经常要他们一天工作14 个小时。

have sb doing是“让某人一直做某事”，doing突出这件事一直在做或者反复做，比如
Don't have the baby crying! 不要让婴儿啼哭!

Don't have the dog bark any more. 别让狗再叫。
Don't have the dog barking any more. 别让狗再一直叫。

同学的理解是对的。

祝同学学习进步~