牙尖，yá jiān，四川方言，属于形容词。意思是说三道四、伶牙俐齿和尖酸的意思。有时候也尤指一个人特别能说，总喜欢洗刷别人。
目的是研究牙尖斜度的三维测量方法。
The objective was to study a 3D-measurement for cuspal inclination.
一大群牙尖齿利的绿色怪兽在他身后紧追不舍。
A snarling swarm of razor-toothed green monsters is hot on his heels.
只有一个牙尖的牙齿。任何一个尖牙都有一个较长的牙根。也称为犬齿。
A tooth with a single cusp. cuspids have the longest root of any tooth. also known as a canine.
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