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- His claim to ownership is invalid. 他的所有权是无效的。
- A passport that is out of date is invalid. 护照过期是无效的。
- His father is a bed-ridden invalid. 他父亲是个缠绵病榻的人。
- He has been an invalid all his life. 他终身残废。
- That is actually a cavity in the earth. 那其实是一个地下洞穴。
- The invalid gained colour under the doctor's care. 病人在医生的治疗下，脸色逐浙红润。
- The invalid lay propped on the pillows. 那病弱者倚靠在枕头上。
- 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
- The girl spent all her spare time to look after her invalid mother. 这个女孩把她所有的业余时间都用来照顾长期生病的母亲。
- invalid cavity 失效型腔
- 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。
- A defect in a legal document that can render it invalid. 破绽，失效可能导致其无效的法律文件的漏洞
- The invalid reached for the glass but could not get it. 病人伸手去拿水杯，但是够不着。
- The invalid found solace in music. 那病人从音乐中得到安慰。
- The peritoneal cavity is a potential space. 腹腔是一个潜在的间隙。
- The peritoneal cavity is a closed sac. 腹膜腔是一个封闭的囊腔。
- The invalid is gathering strength. 病人的体力正在逐渐恢复。
- 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
- 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
