chortlern.chortle的变形：chortle['tʃɔ:tl]vi.咯咯地笑；放声欢笑：The children chortled with delight at his joke.他的笑话逗得孩子们哈哈大笑。纵声欢唱vt.以欢笑声调歌唱n.咯咯的笑(声)；放声欢唱变形：：vi.chortled.chortling