在你问某人发生了什么事或遇到了什么问题的时候就可以说“what's up?”。
　　例句：
　　1. What's up? I came to your house to party and everybody is sitting around looking sad.
　　2. What's up with Lauren? She's been acting in a very strange way.
　　注意：
　　在美式英语里，“what’s up?”是一个常见的打招呼用语，意思是“你好吗？”
　　例句：
　　1. What's up, Frank? I haven't seen you in ages.
　　常识补充：
　　According to the website DriverAbroad.com, around 66% of the world's population live in countries where drivers use the right side of the road. There are 76 countries, territories and dependencies in which they drive on the left. Among these are India, Japan and the United Kingdom.
　　据互联网站DriverAbroad.com统计，全世界大约有66%的人生活在车辆靠右侧行使的国家。然而有76个国家、地区和属地则采用靠左侧行车，其中包括了印度、日本和英国。
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