1. [数]求...的和)：rotate(旋转, 使旋转) | summate([数]求...的和) | donate(捐赠, 赠予)

verb

1. determine the sum of

    e.g. Add all the people in this town to those of the neighboring town

    Synonym: totaltottot upsumsum uptote upaddadd togethertallyadd up

2. form or constitute a cumulative effect