1. In general, pull factors add up to an apparently better chance for a good life and material well-being than is offered by the place of origin. 一般来说,促使因素叠加显然比原产地提供的条件更易获得良好的生活和物质福利。
2. The numbers add up to exactly 100. 这些数字的总数恰好是100。
3. For a hit show, profits can add up to millions of dollars. 对于一个热门节目,利润可达上百万美元。
4. It's the tiny, gradual improvements that add up to world-beating results. 这些微小的、渐进的改进累积起来就产生了一流的成果。