n.渡鸦(羽毛黑色，鸣声刺耳)
raven的第三人称单数和复数

原形：raven第三人称单数：ravens复数：ravens过去式：ravened过去分词：ravened现在分词：ravening

The raven perched on the branch of an old oak tree.
乌鸦栖息在一棵老橡树的树枝上。
Edgar Allan Poe's poem "The Raven" is a haunting masterpiece.
埃德加·爱伦·坡的诗《乌鸦》是一首令人难忘的杰作。
Ravens are known for their intelligence and ability to mimic human speech.
乌鸦以其智慧和模仿人类语言的能力而闻名。
As night fell, the only sound was the ominous hoot of the lone raven.
夜幕降临时，唯一的声音是孤独的乌鸦发出的阴森的叫声。
Ravens often form strong bonds with their mates and can be seen caring for their young together.
乌鸦通常与伴侣形成牢固的纽带，可以一起照顾幼鸟。
The raven's glossy black feathers contrasted sharply against the white snow.
乌鸦那闪亮的黑色羽毛与洁白的雪形成鲜明对比。
In many cultures, the appearance of a raven is considered a sign of impending change or death.
在许多文化中，乌鸦的出现预示着即将来临的变化或死亡。
Ravens were once associated with gods in ancient mythology, symbolizing wisdom and omens.
在古代神话中，乌鸦曾与神灵相关联，象征着智慧和预兆。
Ravens have been observed using tools to crack open nuts, showcasing their problem-solving skills.
有人观察到乌鸦使用工具来敲开坚果，显示了它们解决问题的能力。
A group of ravens is called a 'unm' or 'murder', reflecting their sometimes-feared reputation.
一群乌鸦被称为'群'或'谋杀'，反映了它们有时令人畏惧的名声。