noun🔗Share效力，作用。 The ability to be enforced, or to be enforced to any useful effect."The new rules about homework have teeth; parents are actually following them now. "关于家庭作业的新规定现在有效力了，家长们真的开始遵守了。lawgovernmentpoliticsabilityChat with AIVocabulary GamePractice Reading
verb🔗Share长牙，出牙。 To grow teeth."Babies typically start teething at about six months."宝宝通常在六个月左右开始长牙。physiologybodymedicineChat with AIVocabulary GamePractice Reading
verb🔗Share磨牙 To bite on something to relieve discomfort caused by growing teeth."The baby was teething, so he was constantly teething on his toys. "宝宝正在长牙，所以他不停地磨牙，总是咬他的玩具。physiologybodymedicineChat with AIVocabulary GamePractice Reading
noun🔗Share牙齿，齿。 A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for eating."The dog used its sharp teeth to bite the bone. "这条狗用它锋利的牙齿咬骨头。anatomyorganbodyphysiologyChat with AIVocabulary GamePractice Reading
noun🔗Share锯齿，牙。 A sharp projection on the blade of a saw or similar implement."The saw's teeth cut through the wood easily. "这把锯子的锯齿很锋利，能轻松锯开木头。parttechnicalmachineChat with AIVocabulary GamePractice Reading
noun🔗Share齿， 轮齿。 A projection on the edge of a gear that meshes with similar projections on adjacent gears, or on the circumference of a cog that engages with a chain."The bicycle's gears have small teeth that engage with the chain. "自行车的齿轮上有细小的轮齿，它们与链条啮合。technicalmachinepartChat with AIVocabulary GamePractice Reading
noun🔗Share齿, 齿状突起 A projection or point in other parts of the body resembling the tooth of a vertebrate animal."The comb had tiny teeth that were perfect for detangling my hair. "这把梳子有细小的齿状突起，非常适合解开我头发上的结。anatomypartbodyorganChat with AIVocabulary GamePractice Reading
noun🔗Share齿，锯齿。 A pointed projection from the margin of a leaf."The fern's leaves had tiny teeth along the edges. "这种蕨类植物的叶子边缘有细小的锯齿。plantnaturebiologyChat with AIVocabulary GamePractice Reading
noun🔗Share齿孔，胶片齿孔 The rough surface of some kinds of cel or other films that allows better adhesion of artwork."The artist used a special paper with a textured teeth surface to ensure the drawing adhered well to the surface. "艺术家使用了一种表面带有粗糙齿孔的特殊纸张，以确保绘画作品能够很好地附着在纸面上。arttechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share嗜好，爱好。 Liking, fondness (compare toothsome)."I have a sweet tooth: I love sugary treats."我特别喜欢甜食：我爱吃含糖的点心。attitudesensationChat with AIVocabulary GamePractice Reading
noun🔗Share梳齿，齿。 An irreducible component of a comb that intersects the handle in exactly one point, that point being distinct from the unique point of intersection for any other tooth of the comb."The comb had neatly spaced teeth, each one meeting the handle at a different point. "这把梳子的梳齿排列整齐，每一齿都与梳柄相交于不同的点。anatomypartorganismChat with AIVocabulary GamePractice Reading
