動(dòng)詞 descend:

1. move downward and lower, but not necessarily all the way
   同義詞：descend, fall, go down, come down
2. come from; be connected by a relationship of blood, for example
   同義詞：derive, come, descend
3. do something that one considers to be below one's dignity
   同義詞：condescend, deign, descend
4. come as if by falling
   同義詞：fall, descend, settle

形容詞 descending:

1. coming down or downward

1. Descending from an ancestor to a legal heir; passing down by inheritance.
   承襲的祖先傳給合法繼承人的; 由繼承傳下來(lái)的
2. My sister's family is descending on us this weekend.
   想不到我姐姐一家本周末要到我們這里來(lái)
3. An electromagnetic wave of audio frequency produced by atmospheric disturbances such as lightning, having a characteristically decreasing frequency responsible for a whistling sound of descending pitch in detection equipment.
   嘯聲干擾一種由于諸如閃電等大氣干擾而產(chǎn)生的音頻電磁波，具有典型的逐漸減弱頻率的特征，該頻減引起了檢波設(shè)備中調(diào)逐漸下降的嘯聲
4. The act or an instance of descending.
   下降，降落下降的動(dòng)作或?qū)嵗?/div>