阶段的英文是phase。
例句：
1、调查已进入新阶段。
The investigation has entered a new phase.
2、婚礼标志着埃玛生活新阶段的开始。
The wedding marked the beginning of a new phase in Emma's life.
3、选举活动现在已进入了最后的决定性阶段。
The election campaign has now entered its final, decisive phase.
4、实际上写作过程中最重要的阶段是修改。
The phase of writing that is actually most important is revision.
5、目前危机正进入决定性的关键阶段。
The crisis is entering a crucial, critical phase.
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