进来吧!(这是比come in更随和友好的说法)
例句：
Come on in,my dear.
进来吧,亲爱的.
If you're thinking of becoming a journalist like me,I'd be the last to discourage you.Come on in,the water's fine!
如果你想象我一样做一个新闻工作者,那我决不会劝阻你.来吧,快来吧!