not in close touch

基本解释

Warmest – I use this often for personal mails, especially if I'm close to someone but not in regular touch.
私人邮件中我常常用这个，尤其是当我离别人很近但是又不常联系的时候，我会用这个。
Until the last century or so before the Christian era, the Mongol and the Nordic peoples had not been in close touch.
大约公元前的最近一个世纪，蒙古人和北欧日耳曼民族并没有紧密的联系。
If there is anything that we are falling short of, I would like to say that I am still not in very close touch with foreign businessmen doing business in China.
如果说有什么缺点的话，那就是我同外商的接触还不够紧密。