Mike: Hello, Dave, Tomorrow I am going to Australia. It's so warm there. I can swim all day. I like swimming so much.
Dave: But it's winter time.
Mike: When it's winter in China, it's summer in Australia. Where are you going on holiday?
Dave: I am going to Beijing. It's winter there. I can skate.
Mike: Do you have warm clothes?
Dave: Of course! I have winter coats and some nice new skates, too.
Mike: I have a bathing suit (游泳衣) and sunglasses (墨镜). How do I look?
Dave: Cool! Time to go. See you!
Mike: See you!