I haven't seen you for a long time 。It's been a long time.好久不见 。或 Long time no see.例句在这些国家,握手在每个场合都很普遍,可以是遇到一个陌生人的时候,也可以是问候一个你好久不见的朋友。In these countries, handshakes are common in every situation - when meeting a new person, or even when greeting someone that you have not seen for a long time.