teeth grinding
collocation磨牙（症）
Teeth grinding often happens during deep sleep.
磨牙常发生在深度睡眠中。
研磨；碾磨；磨碎（声）
刷；肝（游戏）；磨削；打磨；磨蹭舞；贴身摩擦舞；研磨或压碎成小颗粒的动作；这种动作的声音；研磨工件以改变其尺寸、形状和表面光洁度的动作
The action of crushing or rubbing something into small particles, or the sound this makes.
研磨或压碎成小颗粒的动作；这种动作的声音
The action of grinding together or crushing into small particles; the sound of this action.
研磨工件以改变其尺寸、形状和表面光洁度的动作
The action of grinding a workpiece to change its size, shape, and surface finish.
一种舞蹈形式,两人身体相互摩擦
A form of dance in which two people rub their bodies together.
在游戏中反复执行相同任务或类似活动以积累积分或财富
Repeatedly performing the same quest or similar in-game activity in order to amass points or wealth.
The grinding of coffee beans produces a rich aroma.
咖啡豆的研磨会产生浓郁的香气。
用法提示：此处grinding作为名词，指研磨的动作或过程。
I could hear the grinding of metal against metal from the old engine.
我能听到旧发动机中金属与金属摩擦的刺耳声。
用法提示：此处grinding作为名词，指刺耳的摩擦声。
Over thousands of years, the grinding of rocks by wind and water shaped the canyon.
数千年来，风和水对岩石的磨蚀塑造了峡谷。
用法提示：此处grinding作为名词，指岩石磨损的过程。
crushing 侧重用压力压碎，不强调摩擦；grinding 常指研磨或碾磨成粉。若强调摩擦力或反复碾磨，用 grinding 更准确。
milling 指用磨（mill）或机床铣削，多用于谷物或金属加工；日常“磨碎”时不如 grinding 常用。
pulverizing 较正式，强调磨成粉末；口语中更常说 grinding。用于比喻或科技语境时二者可互换。
针对“研磨（发出的声音）”这一义项；“silence”指没有声音的状态，不能用于指“研磨”动作本身的反义。
磨牙（症）
Teeth grinding often happens during deep sleep.
磨牙常发生在深度睡眠中。
磨床；研磨机
The factory uses a grinding machine to polish metal shafts.
工厂用磨床抛光金属轴。
砂轮
A new grinding wheel spins at a very high speed.
新的砂轮以很高的速度旋转。
碾磨谷物
The grinding of grain is an ancient human activity.
碾磨谷物是人类古老的活动。
研磨过程；磨削过程
Water is used to cool the workpiece during the grinding process.
在研磨过程中用水冷却工件。
研磨声；摩擦声
I could hear the sound of grinding coming from the kitchen.
我能听到厨房传来的研磨声。
-inding
-inding
-inding
-inding
-inding
-inding
grind（磨碎）+ -ing（名词后缀）
研磨时用来磨削或打磨的材料，如砂粒、金刚砂等。
研磨动作产生的细小微粒。
被磨削加工的对象。
研磨后常进行的精整工序，使表面更光洁。
执行磨削或研磨操作的设备。
戛然而止；突然完全停止；陷入停顿
The talks came to a grinding halt when neither side would compromise.
由于双方都不肯妥协，会谈戛然而止。
极度贫困；赤贫
Many families in the region live in grinding poverty.
该地区的许多家庭生活在极度贫困之中。
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Dictionary facts from ECDICT, WIKTIONARY, WORDNET.