You can easily find beta testers on iPhone forums who will be willing to play your game and give you feedback for free.

你也可以轻易的从一些iPhone论坛找到测试版尝鲜的人，他们可以免费的给你提供些反馈意见。

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Pam:You go on this website and play a word game. If you answer a question right, the website will give free rice to poor people.

你上了这个网页之后可以玩一个单词游戏，如果你答对了，这个网站就会免费捐米给穷人。

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In recent years, the online video game industry has transitioned to a free-to-play business model requiring game makers to give the games away and generate revenue through in-game micro-transactions.

近年来，在线视频游戏行业已经过渡到一种免费的业务模式，游戏开发商需要先给玩家免费提供游戏，然后通过游戏内的各种小交易来盈利。

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Stauskas was fouled on a 3-point attempt with .4 seconds left and, after officials reviewed the play, hit two free throws to give the Wolverines a 47-30 lead.

NPR: Michigan Rolls Into Final Four, Beats Fla. 79-59

Better still, you'll be able to give the app a try yourself tomorrow, when it goes on free trial on Google Play.

ENGADGET: KDDI's smartphone palm authentication app unveiled at CEATEC 2012 (hands-on)