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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- A passport that is out of date is invalid.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。
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- He has been an invalid all his life. 他终身残废。
- The surface of the liquid gradually crusted over. 液体表面渐渐地结了一层皮。
- The invalid gained colour under the doctor's care. 病人在医生的治疗下,脸色逐浙红润。
- A breeze ruffled the surface of the lake. 一阵微风吹皱了湖面。
- The invalid lay propped on the pillows. 那病弱者倚靠在枕头上。
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- The calm water surface is very much like a mirror. 那平静的水面十分象一面镜子。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- He is honest only on the surface. 他只是表面诚实而已。
- 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。
- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- The hard outer portion or surface area of bread. 面包皮面包的表面区域的硬皮
- Surface mail takes longer than airmail. 普通邮件比航空邮件慢。
- The surface of the lake is quite still. 湖面相当平静。
- 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。