study (a subject) intensively, especially in preparation for something
强化学习,(尤指为准备某事而)用功学习
teachers spend their evenings swotting up on jargon.
教师们晚上强化学习行话。
I've always been interested in old furniture and I've swotted it up a bit.
我一直都对老式家具感兴趣,并且集中学习了一些有关的知识。