Usage note
“快要”用来表示即将发生的事情。比如,你可以说‘妈妈快要下班了’来表示妈妈马上就要结束工作回家了。
kuàiyào lái bǎo de jié shì jiān fàng suǒ bù gǎn qǐ de shì qíng.
“快要” is used to indicate something that is about to happen. For example, you can say ‘妈妈快要下班了’ (Māma kuàiyào xiàbāle) to mean your mom is about to finish work and come home.'