阿里巴巴的使命是让天下没有难做的生意。
Alibaba's mission is to make it easy to do business anywhere.
数据库中最重要的东西是数据模型。如果你把数据模型做对了,其他一切都会随之而来。
The city is the collective memory of its people, and like memory it is associated with objects and places.