pith例句

the pith of her argument
她论据的核心

Using a sharp knife, cut away the pith and peel from both fruits.
用一把锋利的刀削去两种水果的外皮和中果皮。

Both the rubber and the pith ball are negatively charged.
这时,橡胶棒和木髓球两者都带负电荷.

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