?动词第三人称单数
... 动词现在分词: chirruping | 动词第三人称单数: chirrups | 名词 chirrup: ...
The air was alive with moths and the chirrups of frogs and cicadas.
BBC: Tagging crocodiles in Belize
More distantly, I could make out sociable puffin chirrups: evening gossip from the birds in their nest-spots on the cliff.
WSJ: The Low-Tech, High-Stakes Way to Sail Scotland
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。