noun 下载 🔗分享 独角鲸 Monodon monoceros, an Arctic cetacean that grows to about 20 feet (6 meters) long, the male having a single horn-like tusk, a twisted, pointed canine tooth that projects forward. Examples : "The children were fascinated by the picture of the narwhal with its long, spiraled tusk, learning it was a type of whale that lives in the Arctic. " 孩子们被那张长着螺旋状长牙的独角鲸图片深深吸引，他们了解到这是一种生活在北极的鲸鱼。 animal ocean nature biology fish 与AI对话词汇游戏阅读练习
