长安的荔枝观后感

Everything can be unblocked for a top down direction.

我觉得instagram之所以能与时俱进到今日,还是因为metric driven的文化。哪怕是top down direction, 如果测试数据过于荒谬,该fail还是fail,无非是证明direction not working的成本比较大。

刘德华太帅了,老了也是这么帅

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