我认识他, 但我俩并不常来常往.I know him, but we dont frequently see each other.跟你常来常往的女孩子们都爱乱花钱 吗 ?Are your usual girls very expensive?沙丘常往内陆移动.The dunes usually migrate inland....

“常往”的英语可以翻译为：frequentation ...