名词
中文翻译：可动颚
同义词：
['moving jaw', 'movable part']
例句：
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1. Themachine's moving jaws were causinga lot of noise.
这台机器的活动颚造成了很多噪音。
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2. The dentist had toremove the movable jaw to repairthe broken tooth.
牙医不得不移动可动颚来修复断裂的牙齿。
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3. Themovable jaw is essential for grindingand crushing food.
可动颚对于研磨和粉碎食物至关重要。