When he woke up and found himself alone, the 4-year-old decided his brother might be on the train he saw in front of him—so he got on.

当醒来发现自己一个人时，这个4岁的孩子判断，哥哥可能在他面前所看见的火车上，所以上了车。

youdao

If you're up front on your own, you realise you're the player who has to be there.

如果你一直一个人冲在前面，你会发现前面就是你该呆的位置。

youdao

We tell clients up front that our first estimate will be based on an understanding of the coarse-grained business requirements and technical architecture.

我们预先告诉客户我们的第一次评估是基于对粗粒度业务需求和技术架构的理解。

youdao

Note: Be sure you are comfortable with the complexities barter can introduce into your life and be up-front with your trade partner on the legalities.

FORBES: Bartering for Survival - Have I Got A Deal for You

Or you can just be up front about it, find these guys on LinkedIn, and pay them for their time (if you can get them interested).

FORBES: How Do You Launch A Startup When You Don't Have Any Technical Experience?

Taxes for the product should be paid prior to it going on the shelf and all costs of recycling should be paid up front.

FORBES: How Our Largest Corporations Made $170 Billion During Great Recession And Paid No Taxes