哈尔滨是我国东北地区北部最大的中心城市，这里最大的特色就是冰雪，如果4月去哈尔滨还冷吗？4月去哈尔滨穿什么？
I\'ve an old table like this: user> id | name | address | comments And now I\'ve to create an \"alias\" table to allow some users to have an alias name for some reasons. I\'ve created a new tabl
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