up-and-up /ˈʌpənˈʌp/ n. | phr. n. [亦作 up and up] 1. 蒸蒸日上，不断的改善 2. 诚实；光明磊落；合法；真实可靠
phr. on the up-and-up〈口〉 1. 〈英〉不断上升的，不断改善的，越来越好的 Attendances and sales at their recent exhibitions have been on the up-and-up. 在他们最近举办的展览会上，参观人数和营业额一直在上升。 Business was on the up-and-up all through the year. 在整个这一年里生意越做越好。 2. 〈主美〉诚实的，光明磊落的；合法的；真实可靠的 The deal is on the up-and-up and should stand scrutiny in any court of law. 这笔交易是光明正大的，应当经得起任何法庭的缜密审查。 This information is on the up-and-up. 这消息真实可靠。