您要查找的是不是：
- The stem is hollow with pith cavity. 茎中空,具较大的髓腔。
- There is a pith cavity on center of vascular bundle in O. minor, O. matsumuranus, O. marginatus and O. americanus.Some species have sclerotic cell or stone cell. 小叶月桂、牛矢果、厚边木犀、美洲木犀叶柄中央具髓腔，部分种叶柄有硬化细胞或石细胞存在。
- The pith of that theory is serving for people. 那个理论的精髓是为人民服务。
- That was the pith of his argument. 那就是他论据的要点。
- That is actually a cavity in the earth. 那其实是一个地下洞穴。
- A cavity or hollowed surface, especially of a bone. 腔尤指骨头的腔或凹陷的表面
- The cavity formed by this structure. 盆腔由这种骨骼结构形成的体腔
- pith cavity 髓孔
- I have a toothache because there is a cavity in one of my teeth. 我牙疼，因为我的一颗牙齿上有个洞。
- The pith in the stems or roots of certain plants. 木髓某些植物茎或根中之髓质
- To remove the pith from(a plant stem). 去髓从（植物茎）中提取髓
- Consisting of or resembling pith. 髓的，多髓的与髓有关的，由髓组成的
- The peritoneal cavity is a potential space. 腹腔是一个潜在的间隙。
- The inmost, choicest, or essential part;the pith. 实质，精华，精髓最深层、最紧要或最必要的部分；精华
- The peritoneal cavity is a closed sac. 腹膜腔是一个封闭的囊腔。
- A fluid-containing sac or cavity in the body of an organism. 池有机体体内一种贮存流体的液囊或穴
- Assorted mushrooms soup with bamboo pith. 竹笙杂菇汤。
- He's gonna need a smaller pith helmet. 他需要一顶小太阳帽。
- A small angular cavity or pit, such as a honeycomb cell. 小窝，蜂巢小窝或小泡，如蜂房的巢室
- Yes, you have a big cavity there. 你有一个大大的蛀牙洞。
