levelup英'levɪlʌp美'levɪlʌpEconomist⁴¹³⁰³⁺² 基本例句 n. 找水平³³拉平; 使…整齐³³; 平衡³⁴ LevelUp, a Boston and Philadelphia pilot from the social network SCVNGR, works somewhat like an airline frequent- flier program. 一个从 SCVNGR社会网络的波士顿和费城试点项目运行的奖励方式与航空公司的常客计划颇有几分相似。 yeeyan