1. 落下下降的動作或例子
   The act or an instance of falling.
2. 聲音降落，降句調(diào)發(fā)音時下降的音調(diào)
   A falling inflection of the voice, as at the end of a sentence.
3. 下降，降落下降的動作或實(shí)例
   The act or an instance of descending.
4. 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
   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.

下的英語翻譯：

降的的英語翻譯：