Also note that the else statements are needed, since a call to Free will make the next check to the same component index an invalid check.

还要注意的是，else语句是必需的，因为调用Free会使下次对同一组件索引的检验变成无效检验。

youdao

By reading Call me Ted, you learn about how Ted had free reign to produce at Turner Industries until he gave over that veto clause, and you make a mental note not to do that.

通过阅读“叫我泰德”，你看到泰德是如何自由的统治着他的工业王朝直到他交托了否决行使权，你一定铭记在心决不会这么做。

youdao

Make a reservation for your next trip on-line or call us toll-free. We look forward to having you as our guest soon.

在下次旅行中，您可以在网上或者拨打我们的免费服务热线来完成您的预定，我们真诚期待您的光临。

youdao

And in the future, if Facebook expands beyond the test phase, you could make a free call from the app.

FORBES: Facebook Adds Voice Messages, Tests VoIP Calls

The Masters does provide phone banks, where a patron can make a free call to the outside world, but locating another person on the course is tricky.

WSJ: Masters 2012: Navigating a No-Phone Zone

And, you couldn't make a free phone call over the Internet--no one had even heard of the Internet.

FORBES: Transforming Telecom