您要查找的是不是：
- A herbivorous marine mammal(Dugong dugon), native to tropical coastal waters of the Indian Ocean, Red Sea, and southwest Pacific Ocean and having flipperlike forelimbs and a deeply notched tail fin. 儒艮一种食草海洋哺乳动物（儒艮儒艮属），生长于印度洋，红海和西南太平洋热带沿岸水域，具有蹼状前肢和明显锯齿状尾鳍
- The monitor is really a notch above us. 班长确实比我们略胜一筹。
- A herbivorous marine mammal(Dugong dugon),native to tropical coastal waters of the Indian Ocean,Red Sea,and southwest Pacific Ocean and having flipperlike forelimbs and a deeply notched tail fin. 儒艮，一种食草海洋哺乳动物（儒艮儒艮属），生长于印度洋，红海和西南太平洋热带沿岸水域，具有蹼状前肢和明显锯齿状尾鳍。
- Many boys and girls tailed after the circus parade. 许多男孩子和女孩子跟在马戏团游行队伍的後面。
- He cut a notch in the stick with a sharp knife. 他用利刃在棒上刻了一个凹痕。
- He hated to tuck his tail and back down now. 他讨厌此时夹着尾巴退回来。
- The tail exhaust pipe of the motor vehicle emitted poisonous smoke. 机动车的尾部排气管排出有毒的浓烟。
- The dog wagged its tail excitedly. 那条狗兴奋地直摇尾巴。
- The dog wags its tail in expectation of a bone. 那条狗摇著尾巴，巴望吃肉骨头。
- A cat with no tail is an anomaly. 没尾巴的猫是一只畸形猫。
- Can the Libyan tail wag the Egyptian dog? 利比亚这小国家能左右埃及这样的大国吗？
- Interest in the skate board tailed off. 人们对滑冰板的兴趣渐渐小了。
- Some boys tailed after the parade. 有些孩子尾随在游行队伍之后。
- A groove or notch made by a cutting tool, such as a saw or an ax. 锯缝，劈痕切割型工具如锯或斧子所制造的沟槽或凹口
- The whale thrashed the water with its tail. 那条鲸鱼不住地用尾巴击水。
- The notch cut into a key that corresponds to such a ridge. 钥匙的榫槽钥匙上切割出的对应锁眼的凸槽
- The sting of a scorpion is in its tail. 蝎子的毒钩在其尾部。
- The cow's tail flicked from side to side. 牛尾巴轻轻地左右摇摆。
- The horse swished its tail (about). 那匹马刷刷地挥动尾巴。
- This one is a notch better than the other. 这一个要比那一个高一等。
