最后，我要补充一点，那就是要聪明，你必须要相信自己。
Finally, let me add that in order to be smart, you must also believe in yourself.
查询数据库每一秒左右，也不错，但你必须要有那么一点聪明。
Querying the DB every second or so is also fine, but you have to be just a wee bit clever.
查询数据库每一秒左右，也不错，但你必须要有那么一点聪明。
Querying the DB every second or so is also fine, but you have to be just a wee bit clever.
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