3B1 expresses question above the function, indeed expects it not to happen. 3B2 expresses uncertainty, it would or may not materialize. 3B3 expects that it will transpire. 年货节选购智能门锁除了要看产品的参数，还要在买前了解自家门体的情况，确认是否符合安装智能锁的条件，否则有可能出现安装人员拆掉门锁后才发现无法安装，浪费时间精力不说，还可能有额外的安装费用。 此外，这款的功能比较基础，... https://augustswgqf.onesmablog.com/how-much-you-need-to-expect-you-ll-pay-for-a-good-lawyer-in-dha-77352209