xià jiàng duàn
- descent stage
- descending branch
- descent trajectory
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at the front of,
at the head of,
at the instance of,
at the last moment,
at the latest,
at the least,
at the mercy of,
at the moment,
at the most,
at the opposite extreme,
相似单词
下贱,
下贱的,
下贱地,
下降,
下降的,
下降段,
下降气流,
下降趋势,
下降物,
下降性循环,