两个都可以。 dream about 中文是：梦到. "At night I always dream about snow" 你翻译的是错的，正确的是：晚上睡觉我经常梦到雪。 因为晚上你可能还没入睡，那时候不可能做梦，所以中文里要说明是睡觉的时候梦到的。

Two different kinds of dreams dreamA：something happen in your mind when you are sleeping dreamB：something that you want to happen very much 梦(noun)--mostly means dreamA, but sometimes could be dreamB e.g. 昨晚我做了一个梦(dreamA). 我有一個梦(dreamA or dreamB? no one knows until you finish the whole sentence) 梦想(noun or verb)--always dreamB e.g. 我有一個梦想(dreamB). 我的梦想是成為一個老師=我梦想成為一個老師(dreamB). 梦到or梦見(verb)--always dreamA e.g. 昨晚我梦見媽媽(dreamA). 我梦到自己是一隻鳥(dreamA). "梦想雪天"is not correct because you are talking about dreamA, you should've say "梦見下雪"or"梦見雪" 梦中and梦里have the same meanings 今晚会做有你的梦／今晚你会出现在我的梦里(中)／今晚做梦的时候梦里(中)会有你／今晚梦里(中)会有你 All of them are OK and I prefer 今晚梦里会有你 or 今晚我会梦见你 希望有帮上忙

今晚你会出现在我梦里。 今晚我会梦到你。 晚上我总是会梦到雪。（“梦见”也可以）

像这样诗意的句子，把“今晚”改成“今夜” 更为贴切。 “今晚”是非常口语化的句子。

谢谢Christon! Ben, I think in Chinese when I write Chinese.. That doesn't mean I'll automatically speak perfectly. Obviously there are gaps in my knowledge. You're not helpful, you're condescending and rude. 'Read more Chinese books and news' could you get any more generic? Your comments towards others who are trying to assist me in my language learning is also unbelievable. If you don't agree with someone, you don't have to be rude to them.