1 ADJ-GRADED [usually verb-link ADJ] 开诚布公的；公开的；坦率的 If you are up front about something, you act openly or publicly so that people know what you are doing or what you believe. 开诚布公的；公开的；坦率的 [informal]
2 ADV [ADVERB after verb] 预付地；先期支付地 If a payment is made up front, it is made in advance and openly, so that the person being paid can see that the money is there. 预付地；先期支付地
-
For the first time the government's actually put some money up front.
政府居然预付了一笔钱，这可是有史以来第一次。
-
Some companies charge a fee up front, but we don't think that's right.
有些公司预先收费，但我们认为那是不对的。
Up front is also an adjective.