Edm
abbr. 放电机（Electric Discharge Machining）
🗣️ 情景例句
Thank you.
谢谢你。
History repeats itself.
历史本身常重演。
As the parents had five children, life was a perpetual struggle against poverty.
家里已有5个孩子，全家人常年在贫困中挣扎。