试验

在云端试验时的“有所为和有所不为”

“The best way to show that a stick is crooked is not to argue about it or to spend time denouncing it, but to lay a straight stick alongside it” ― D.L. Moody(“验证一根木棒是弯曲的最好的方法不是争论或花时间去抨击,而是