本期主讲：小C老师

原文

WeChat hits one billion monthly users – are you one of them?

WeChat has hit one billion monthly users for the first time, the owner of the Chinese messaging app has revealed. 

笔记

hit v. 达到
billion (number) 十亿
monthly active user 月活跃用户
messaging app 通讯工具型手机应用
reveal v. 披露，揭露
the jewel in the crown: the most attractive or valuable part of sth 最有吸引力或价值的东西

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