major in

She majored in Maths and Physics at university.

她在里修数和物理。

Mr. Stone spent his undergraduate days in Columbia University, majoring in economics.

斯通先在哥伦比亚度过了他四年的活, 修经济。

Now our company is majoring in nuts series: rivet nuts, blind rivet, insert nuts,nylon locknuts, welded nuts, flange nuts and other kinds of auto standard parts.

上海锐拓五金现在营紧固件系列中的类产品： 铆，龙锁紧，焊接，法兰，以及各类汽车标准件。