   neutral   Then what about spring?     neutral   Spring is warm and short in Beijing.  
    neutral   It must be cold in the winter, though.     neutral   You got it. Oh, by the way, it may be really cool in the evening around this time of the year. Don't forget to put on more clothes, or you might catch a cold.  
    happiness   Thanks for reminding me.     happiness   
 Well, I think that all sounds good. 
 Have I ever told that we can take some days'vacation?    sadness  