You can take a course on something practical like jewellery making or pottery.

你可以take a course on某个实务学科比如珠宝制作或者陶艺。

So Jessica Rose used her savings to learn jewellery making and then set up her own jewellery-making business.

所以杰西卡·罗斯用她的存款学习了珠宝制造，然后创办了自己的珠宝制造公司。