Lǎoshī / xiān / jiǎngjiě / juéduì / liánxù / de / dìngyì / zài / dài / wǒmen / wánchéng / zhèngmíng

老师先讲解绝对连续的定义，再带我们完成证明。

The teacher first explained the definition of absolute continuity and then guided us through the proof.