降级

降级 [jiàng jí]

1. ■ （降低级别） reduce to a lower rank; reduce in rank; sink in the scale; demote; degradation

2. ■ （留级） send (a student) to a lower grade

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常用词组

1. ■ 降级恢复 degraded recovery;

2. ■ 降级间隔 degradation interval