老外对你说：You’re a star！别理解成“你是大明星”！
如何理解You're a star
剑桥字典里的解释：You're a star(非正式）
如果他人为你提供帮助
你为此不胜感激就可以说：
You're a star
（It's very kind of you ）
你真是太好啦！
超级例句：
I really appreciate what you did for me. You're a star! Thanks a million.
我真的很感激你为我所做的一切。你真是个大好人! 万分感谢。
Hi Pikachu! You're a star. There's beer in the fridge if you want.
嗨，皮卡丘！你太好了。如果你想要的话，冰箱里有啤酒。
温馨提示：如果你真是有粉丝的明星
You're a star=你是个明星
Have stars in your eyes
主要有两层意思
英文释义
To have an overly idealistic or optimistic outlook,usually regarding one's hopes for success.
对现实过于理想或者乐观
尤指在某人追求成功方面
超级例句：
I doubt she'll actually become a famous actress—she just has stars in her eyes.
我真的怀疑她是否能成为一名知名演员，她太乐观了。
英文释义：
be idealistically hopeful or enthusiastic, especially about a possible future.
对美好的未来充满期待
谈及某事就高兴的“两眼放光”
超级句型：
Thinking about their coming marriage, they both had stars in their eyes.
想到即将到来的婚礼，他们两人都两眼放光。
You have stars in your eyes whenever your boyfriend chats with you.
每次和你男朋友聊天，你都是两眼放光(充满幸福感)。
see stars
如果朋友对你说：I could see stars
千万别理解成“他可以看到星星”
很有可能是他生病了，不舒服
see stars=眼冒金星
超级例句：
I felt a little dizzy[ˈdizi] and could see stars.
我感觉有点晕，眼冒金星了。
The blow on his head made Pikachu see stars.
当头挨了一击，皮卡丘眼睛直冒金星。
guest star
guest有贵宾、客人之意
guest star就是
“特约演员明星，客串”
超级例句：
Entourage has landed a big guest star for season eight.
《明星伙伴》第八季又迎来一位明星客串了。
Harry Potter actress Clemence Poesy is also set to guest star in thesetwo episodes.
来自哈利波特的女演员克蕾曼丝·波西也会在这两集中与大家见面。
shooting star
这个表达就是我们常说的“流星”
宇宙中的固体颗粒接近地球时
由于受到地球引力的摄动而被地球吸引
从而进入地球大气层
并与大气摩擦燃烧所产生的光迹
超级例句：
I spotted a shooting star which, to my astonishment, was bright green in colour .
我看见一颗流星，使我大为惊奇的是，它居然是鲜亮的绿色。
A bright shooting star, or meteor, is an unforgettable sight.
明亮的流星，或者说陨石，是番难忘的景象。