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。
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。
The availability of free services is expected to make it difficult for vendors selling proprietary IM software to gain much traction within corporations.
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