意思是abbr. 世界通信年(world communication year)
例如
Texting is the cheapest and most popular mode of cellphone communication in most of the world, and last year text messages topped voice calls even in the U.S..在世界大多数地方,短信是最便宜、也是最受欢迎的手机通信方式。去年,即便是在美国,短信发送的数量也超过了直接通话。