or解释为否则时后面能不能接短语

比如They had better learn something or risk flunking out later.这种情况or有否则的意思吗？

从汉语翻译可知or的意思就是
【否则的话】

They had better learn something or risk flunking out later.

【他们最好学点东西，否则的话，就面临着遭退学的危险。】

名词或短语 1.linda is respective in spite of her age. 不管她的年龄，琳达是应受尊敬的。2.her father was an old unmarried professor of mathematics, a brutal man and a braggart, who went out to give lessons in spite of his age 她的父亲是个性情粗暴、爱吹牛的老数学教师，从没正式结过婚，虽然上了年纪，却还靠替人补课度日。3.for in spite of her tender years and evident delicate health, she had an air of natural distinction. 身体面庞虽怯弱不胜,却有一段自然风流态度,