noun🔗Share齿轮上的齿，轮齿。 A tooth on a gear."The old clock's second hand stopped moving because several cogs on one of its gears were broken. "那个老钟的秒针不动了，因为其中一个齿轮上的好几个齿都坏了。machineparttechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share齿轮， 轮齿。 A gear; a cogwheel."The clock's cogs need oiling because they're making a loud grinding noise. "这个钟表的齿轮需要上油了，因为它们发出很大的摩擦声。machineparttechnologytechnicalstructureChat with AIVocabulary GamePractice Reading
noun🔗Share螺丝钉，小卒。 An unimportant individual in a greater system."The new student felt like a cog in the large, complicated machine of the high school. "这个新生觉得自己就像是高中这台庞大而复杂的机器里的一个小螺丝钉。systemorganizationjobpersonChat with AIVocabulary GamePractice Reading
noun🔗Share榫头，凸榫。 A projection or tenon at the end of a beam designed to fit into a matching opening of another piece of wood to form a joint."The carpenter carefully aligned the cogs at the end of the beam with the mortises in the post, ensuring a strong and stable joint for the timber frame. "木匠小心地将梁尾端的榫头对准立柱上的榫眼，确保木构架的接合处坚固稳定。architecturepartbuildingstructuretechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share矿柱，支撑柱。 One of the rough pillars of stone or coal left to support the roof of a mine."The old mine shaft was held up precariously by just a few uneven cogs of coal, reminding the miners of the ever-present danger. "这个老矿井巷道仅仅靠着几根高低不平的煤矿矿柱摇摇欲坠地支撑着，提醒着矿工们无处不在的危险。materialgeologystructurebuildingChat with AIVocabulary GamePractice Reading
noun🔗Share柯克船，圆船。 A ship of burden, or war with a round, bulky hull."The medieval port bustled with activity as cogs loaded with wool and spices arrived from distant lands. "中世纪的港口热闹非凡，满载着羊毛和香料的柯克船（圆船）从遥远的国度抵达。nauticalvehiclemilitarysailingwarhistoryChat with AIVocabulary GamePractice Reading
noun🔗Share花招，骗局 A trick or deception; a falsehood."The politician's promises about lowering taxes turned out to be mere cogs to win votes. "那位政客关于减税的承诺结果只是为了赢得选票而耍的花招。charactermindactionnegativewordChat with AIVocabulary GamePractice Reading
noun🔗Share小渔船， 渔艇 A small fishing boat."The small cogs bobbed gently in the harbor, waiting for the fishermen to begin their day. "那些小渔艇在港湾里轻轻摇晃，等待渔民们开始新的一天。nauticalvehiclefishChat with AIVocabulary GamePractice Reading
noun🔗Share小牛奶桶，小木罐 A small round wooden vessel for holding milk."After milking the cow, Grandma carefully poured the fresh milk into several cogs to carry into the house. "挤完牛奶后，奶奶小心地把新鲜的牛奶倒进几个小牛奶桶里，准备拿到屋子里去。utensilfoodChat with AIVocabulary GamePractice Reading
