pith a frog
collocation破坏青蛙的脊髓（使其失去知觉或死亡）
In the lab, we had to pith a frog before dissecting it.
在实验室里，我们必须在解剖前破坏青蛙的脊髓。
除去（植物）的髓；抽取（某人∕某物）的精华
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除去（植物）的髓；抽取（某人∕某物）的精华
To remove or extract the pith from (a plant, or figuratively from something/someone).
I pith the oranges before juicing them.
我在榨汁前去除橙子的髓。
通过切割、刺穿或以其他方式破坏脊髓使(动物,尤其是牛或实验动物)失去知觉或杀死。
To render insensate or kill (an animal, especially cattle or a laboratory animal) by cutting, piercing, or otherwise destroying the spinal cord.
从(某物或(比喻)某人)中提取髓。
To extract the pith from (something or (figurative) someone).
去除(植物的)髓
remove the pith from (a plant)
pith
Base
原形
piths
3rd person
第三人称单数
pithing
-ing
现在分词
pithed
Past
过去式
pithed
Past participle
过去分词
She piths the oranges before juicing them.
她在榨汁前先去除橙子的中果皮。
He pithed the lemons for the recipe.
他为这个食谱去除了柠檬的中果皮。
They are pithing the grapefruits right now.
他们正在去除葡萄柚的中果皮。
规则动词
She pithed the lemons for the marmalade.
她为制作果酱去除了柠檬的髓。
He is pithing the grapefruit for the salad.
他正在为沙拉去除葡萄柚的髓。
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破坏青蛙的脊髓（使其失去知觉或死亡）
In the lab, we had to pith a frog before dissecting it.
在实验室里，我们必须在解剖前破坏青蛙的脊髓。
破坏脊髓用的针
The pithing needle is inserted through the foramen magnum of the animal.
将破坏脊髓用的针从动物的枕骨大孔插入。
破坏脊髓的大鼠（实验用）
The pithed rat is used as a model to study cardiovascular reflexes.
破坏脊髓的大鼠被用作研究心血管反射的模型。
Use pith naturally, then get feedback on meaning, tone, grammar, and phrasing.
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记忆联想：pith 像 pit（坑/核）加 h，指果皮内那层白瓤；动词即‘去除白瓤’，也指刺毁脊髓使动物失去知觉。
语域：formal 常见场景：veterinary medicine、laboratory animal research 这个义项指通过破坏脊髓处死动物，通常出现在兽医或实验室等专业语境，属于正式用法，日常对话中较少使用。
通常用于园艺语境，后面直接接植物名词。
Dictionary facts from ECDICT, WIKTIONARY.