So several factors can cause slowdowns: the CPU is busy, the application is doing too much I/O, it is waiting for I/O to complete, or some combination.
所以有多个因素可能导致速度降低：CPU 繁忙、应用程序做的 I/O 过多、 等待 I/O 完成或上述情况的某种组合。
Eto 'o is an important player who asks for too much money.
埃托奥是一名出色的球员，但要价太高了。
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