Social- media firms are investigating whether they can tap the micro transactions market say, by offering virtual currencies or goods that users can use as barterthough forced partnerships with local telecoms firms threaten the profitability of such schemes.
【词汇突破】
tap 开发
micro transactions 微交易
barter实物交易；交易品，互换品
virtual currencies 虚拟货币
profitability 收益性
schemes 计划
Say 比如说，常用来举例。
【主干识别】Social-media firms are investigating whether+宾语从句
【其他成分】插入语： by offering virtual currencies or goods that users can use as barter that users can use as barter 定语从句修饰goods. 根 据语义可以判断出不是修饰currencies
【状语从句】 though forced partnerships with local telecoms firms threaten the profitability of such schemes.
再解释一下：forced partnerships with local telecoms firms threaten the profitability of such schemes.
结构：A threaten B
主语A：forced partnerships with local telecoms firms(forced 强迫性的)(强迫性的同当地电信公司的合作关系)核心主语：partnerships； B： the profitability of such schemes
【参考译文】社交媒体公司正在研究是否可以开发微交易市场，比如说，提供虚拟货币或者可以作为物物交换的商品，虽然被迫与当地的电信企业建立起来的合作关系正威胁着这些计划的可盈利性。
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