http://m.wordbook.naver.com/endic/today/conversation.nhn?targetDate=2016.02.03 A Barbara, have you heard of the O train and V train? B Yes, I want to take those trains sometime. A Then why don’t we try sometime this month? B Sounds nice. It’ll be nice to take in all the surroundings. A Speaking of that, let’s decide when to go. B Okay, here’s a calendar on my phone. A ..