A cheaper range of products was introduced to plug the gap at the lower end of the market.
推出相对廉价的一系列产品,是为了填补较低档市场的缺口。
《牛津词典》
2
As a result, their math grades overtook those of the other students by the end of the first semester — and the gap between the two groups continued to widen during the two years we followed them.
As a result, their math grades overtook those of the other students by the end of the first semester—and the gap between the two groups continued to widen during the two years we followed them.