sum up phr v 1 [I,T sum sth ↔ up] to end a discussion or speech by giving the main information about it in a short statement 总结，概括: So, to sum up, we need to organize our time better. 因此，总而言之，我们需要更好地安排时间。 2 [T sum sth/sb ↔ up] to form an opinion about someone or something 判断，估量: Pat summed up the situation at a glance. 帕特一眼就对形势作出了判断。