Pither
n. (植物的)木髓, 树心；髓；骨髓；(羽毛的)毛髓\\nvt. 从(植物茎)中取髓：；(用切断动物脊髓的方法)杀死；使瘫焕；抽出脊髓：
🗣️ 情景例句
but I really enjoy it.
但我确实乐在工作。
A standard one. Replacement during the first year if all rules for proper use have been followed.
有一个原则，如果在一年内符合各种使用规定，就可更换。
It is not a simple competition for a fixed amount of food determined by the physical environment,
它已不是为了争得物质环境所决定的有限食物而进行的简单竞争了，