This time, I chose a very pretty white phalaenopsis pinned all the way round into an arch.
当时,我选择了一株非常漂亮白色蝴蝶兰,长成一圆拱形状。
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Redo logs are written in a round-robin manner; therefore, before they are overwritten, the redo logs need to be archived either manually or automatically by kick-starting the ARCH process.