Offer possible avenues for discovering the answer, such as library research.
向他们指出可能找到答案的途径，例如去图书馆研究。
Web-based real-time reference service is the hot spot of library research and experiment abroad.
网上实时参考服务是当今国外图书馆研究与试验的一个热点。
Web-based real-time reference service is the hot spot of library research and experiment abroad.
网上实时参考服务是当今国外图书馆研究与试验的一个热点。
应用推荐