Dispersed families with strong ties and limited resources have taken to voice-over-internet services, im and webcams, all of which are cheap or free.
那些分离的关系密切的家庭因为有限的资金而选择象互联网通话服务，即时通讯和webcams这些便宜的方法。
The availability of free services is expected to make it difficult for vendors selling proprietary IM software to gain much traction within corporations.
由于免费服务的存在，使得制造商想要依靠销售即时通信软件来从企业中获取利益变得越来越难。
Your fly split should match your free split, whether it's a 200 or 400 IM.
你的蝶泳分段成绩应该和你的自由泳分段成绩相匹配，不论这是200米混还是400米混。
Aim: To investigate the effects of indomethacin (im) on free radical reactions in brain tissues of rabbits with acute experimental brain injury.
目的：探讨消炎痛对急性实验性脑外伤后兔脑组织氧自由基反应的影响。
Aim: To investigate the effects of indomethacin (im) on free radical reactions in brain tissues of rabbits with acute experimental brain injury.
目的：探讨消炎痛对急性实验性脑外伤后兔脑组织氧自由基反应的影响。
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