As Kunar and Horowitz report, those who were making the equivalent of a hands-free call had an average reaction time 212 milliseconds slower than those who were not.

库纳尔和霍洛维茨报告说，那些使用免提电话之类的人，他们的平均反应时间比不使用免提电话的人慢212毫秒。

youdao

Validate_ptrs If a pointer that was previously not allocated by malloc is passed to the free call, an error message is thrown and the program is aborted.

validate_ptrs如果向free调用传递的指针并不是以前由malloc分配的，那么将会引发一个错误消息，而该程序将被中止。

youdao

If the server receives more than the maximum number, it simply queues the additional RPCs until a free call executor thread is available to execute the RPC.

如果服务器收到的RPC超过这个最大数量，它会把多余的RPC排队，直到有空闲的调用执行者线程可以执行rpc。

youdao

The Russian leader also praised U.S.President Barack Obama's recent call for a nuclear-weapons-free world, calling it a "beautiful and right goal."

VOA: standard.2009.12.25

you can call your friend and ask them when they'll be free by using a "when" question.

你可以打电话给他们，用“When”问句来询问他们什么时候有空。

When 课堂 - SpeakingMax英语口语达人

When the program launches in the Philippines in a few weeks, a farmer can call a toll-free number and hear a recording in his or her language that sounds something like this.

VOA: standard.2010.07.28

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

This means businesses can advertise themselves as having a "global toll-free number, " letting their clients know "it's a free call with Viber".

ENGADGET: Viber VoIP iPhone app: 3G calling, no registration, and totally free

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