Ideally, we'd have smaller classes grouped by ability, so teachers could slow down and re-teach difficult material. 理想情况下，我们会根据能力分组进行小班授课，这样老师们就可以放慢速度，重新教授讲授材料的困难部分。
I've been reteaching myself to knit properly, and I must admit that my knitting looks more professional now.