try before you buy

基本解释

As with all kayaking kit we'd highly recommend that you try before you buy.
如同所有的皮划艇套件我们会强烈建议您先试后买。
We understand that hotel stays are one of the few things you can’t try before you buy--and usually the most expensive part of travel expenses.
他还补充道，“我们知道，旅行者在付款之前是没法尝试、体验他所选择的酒店，而酒店也通常是旅行花费最多的一项支出。
In our try it before you buy it culture, it makes sense that couples would choose to live together before comitting their entire lives in marriage.
在这种先试后买的文化中，情侣们在以婚姻的形式相互托付终身之前选择同居就成为了一种合情合理的现象。

If you want to try before you buy, WoTc has made a sample chapter available for download.
FORBES: Shelly Mazzanoble Knows Dungeons & Dragons
Giving players the ability to try before you buy is always a good thing, but in this case especially, because the game has such an unusual flavor, it could provide vital information.
FORBES: Starting Your Carrier: Carrier Command Demo Released
Finally, it helps that books are quasi commodities -- there's no need to try them on before you buy -- and that they're small-ticket, impulse items that are easy to ship.
FORBES: Does Amazon.com really matter?